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Cisco Unified IP Phone 8961, 9951, and 9971 Administration Guide for Cisco Unified Communications Manager 8.5 (SIP)

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Text Part Number: OL-20862-01

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The following information is for FCC compliance of Class A devices: This equipment has been tested and found to comply with the limits for a Class A di gital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio-frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case users will be required to correct the interference at their own expense.

The following information is for FCC compliance of Class B devices: The equipment described in this manual generates and may radiate radio-frequency energy. If it is not installed in accordance with Cisco’s installation instructions, it may cause interference with radio and television reception. This equipment has been tested and found to comply with the limits for a Class B digital device in accordance with the specifications in part 15 of the FCC rules. These specifications are designed to provide reasonable protection against such interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation.

Modifying the equipment without Cisco’s written authorization may result in the equipment no longer complying with FCC requirements for Class A or Class B digital devices. In that event, your right to use the equipment may be limited by FCC regulations, and you may be required to correct any interference to radio or television communications at your own expense.

You can determine whether your equipment is causing interference by turning it off. If the interference stops, it was probabl y caused by the Cisco equipment or one of its peripheral devices. If the equipment causes interference to radio or television reception, try to correct the interference by using one or more of the following measures:

• Turn the television or radio antenna until the interference stops.

• Move the equipment to one side or the other of the television or radio.

• Move the equipment farther away from the television or radio.

• Plug the equipment into an outlet that is on a different circuit from the television or radio. (That is, make certain the equipment and the television or radio are on circuits controlled by different circuit breakers or fuses.)

Modifications to this product not authorized by Ci sco Systems, Inc. cou ld void th e FCC approval and negate your auth ority to op erate the product. The Cisco implementation of TCP header compression is an adaptation of a program developed by the University of California, Berkeley (UCB) as part of UCB’s public

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Cisco Unified IP Phone 8961, 9951, and 9971 Administration Guide for Cisco Unified Communications Manager 8.5 (SIP)

Preface xi

Overview xi

Audience xi

Organization xi

Preface

Cisco Unified IP Phone 8961, 9951, and 9971 Admini stration Guide for Cisco Unified Commu nications Manager 8.5 (SIP) provides the information you need to understand, install, configure, manage, and

troubleshoot the phones on a Voice-over-IP (VoIP) network. Because of the complexity of an IP telephony network, this g uide does not provide complete and detailed

information for procedures that you need to perform in Cisco Unified Communications Man ager or other network devices. See the “Related Documentation” section on page xiii.

Audience

Network engineers, system administrators, or telecom engineers should review this guide to learn the steps required to properly set up the Cisco Unified IP Phone on the network.

The tasks described are administration-level tasks and are not intended for end-users of the phones. Many of the tasks involve configuring network settings and affect the phone’s ability to function in the network.

Because of the close interaction between the Cisco Unified IP Phone and Ci sco Unified Communications Manager, many of the tasks in this manual require familiarity with Cisco Unified Communications Manager.

Organization

This manual is organized as follows:

Chapter Description

Chapter 1, “An Overview of the Cisco Unified IP Phone”

Chapter 2, “Preparing to Install the Cisco Unified IP Phone on Your Network”

Provides a conceptual overview and description of the Cisco Uni fied IP Phone.

Describes how the Cisco Unified IP Phone int eracts with o ther key IP telephony components, and provides an overview of the tasks required prior to installation.

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Cisco Unified IP Phone 8961, 9951, and 9971 Administration Guide for Cisco Unified Communications Manager 8.5 (SIP)

Preface

Chapter 3, “Setting Up the Cisco Unified IP Phone” Describes how to properly and safely install th e Cisco Unif ied IP

Phone on your network. Also provides procedures on how to configure and add accessories, such as Bluetooth wireless headsets, USB headsets, and analog wideband headsets, to the Cisco Unified IP Phone.

Chapter 4, “Setting Up the Cisco Unified IP Color Key Expansion Module”

Chapter 5, “Setting Up the Cisco Unified Video Camera”

Chapter 6, “Understanding the VoIP Wireless Network”

Chapter 7, “Configuring Settings on the Cisco Unified IP Phone”

Chapter 8, “Configuring Features, Templates, Services, and Users”

Chapter 9, “Customizing the Cisco Unified IP Phone”

Chapter 10, “Viewing Model Information, S tatus, and Statistics on the Cisco Unified IP Phone”

Chapter 11, “Monitoring the Cisco Unified IP Phone Remotely”

Chapter 12, “Troubleshooting and Maintenance” Provides tips for troubleshooting the Cisco Unified IP Phone and the

Appendix A, “Providing Information to Users Via a Website”

Appendix B, “Supporting International Users” Provides information about setting up phones in non-English

Appendix C, “Technical Specifications” Provides technical specifications of the Cisco Unified IP Phone. Appendix D, “Basic Phone Administration Steps” Provides procedures for basic administration tasks such as adding a

Appendix E, “Installing the Wall Mount for the Cisco Unified IP Phone”

Appendix F, “Cisco Unified IP Phone Non-Lockable Wall Mount”

Describes how to connect and configure supported Key Expansion Modules for the Cisco Unified IP Phone.

Describes how to configure the Cisco Unified Video Camera and add it to the Cisco Unified IP Phone (Cisco Unified IP Phone 9951 and 9971 only).

Provides an overview and describes the setup of the wireless local area network (WLAN), which the Cisco Unified IP Phone 9971 supports.

Describes how to configure network settings, verify status, and make global changes to the Cisco Unified IP Phone.

Provides an overview of procedures for configuring telephony features, configuring directories, configuring phone button and softkey templates, setting up services, and adding users to Cisco Unified Communications Manager.

Explains how to customize phone ring sounds and the phone idle display at your site.

Explains how to view model information, status messages, network statistics, and firmware information from the Cisco Unified IP Phone.

Describes the information that you can obtain from the phone’s web page to remotely monitor the operation of a phone and to assist with troubleshooting.

Cisco Unified IP Phone Expansion Modules. Provides suggestions for setting up a website for providing users

with important information about their Cisco Unified IP Phones.

environments.

user and phone to Cisco Unified Communications Manager and then associating the user to the phone.

Contains instructions for installing the wall mount for the Cisco Unified IP Phone.

Contains instructions for installing the Cisco Unified IP Phone Non-Lockable Wall Mount.

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Preface

An Overview of the Cisco Unified IP Phone

The Cisco Unified IP Phone 8961, 9951, and 9971 provide voice communication over an Internet Protocol (IP) network. The Cisco Unified IP Phone functions much like a digital business phone, allowing you to place and receive phone calls and to access features such as mute, hold, transfer, speed dial, call forward, and more. In addition, because the phone is connected to your data network, it offers enhanced IP telephony features, including access to network information and services, and customizeable features and services.

The Cisco Unified IP Phone 8961, 9951, and 9971 have the following features:

• 24-bit color phone screen (Cisco Unified IP Phone 9971 has touchscreen support)

• Programmable feature buttons that support up to 5 lines (6 lines for the Cisco Unified

Phone 9971) or can be programmed for other features

• Full video capabilities (Cisco Unified IP Phone 9951 and 9971 only)

• Gigabit ethernet connectivity

• Support for an external microphone and speakers

• Bluetooth support for wireless headsets (Cisco Unified IP Phone 9951 and 9971 only)

• Network connectivity by Wi-Fi (Cisco Unified IP Phone 9971 only)

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• 2 USB ports for Cisco Unified IP Phones 9951 and 9971 and one USB port for Cisco Unified IP

Phone 8961

A Cisco Unified IP Phone, like other network devices, must be configured and managed. These phones encode G.711a-law, G.711µ-law, G.722, G.729a, G.729ab, and iLBC, and decode G.711a-law, G.711µ-law, G.722, G.729, G.729a, G.729b, G.729ab, and iLBC.

This chapter includes the following topics:

• Understanding the Cisco Unified IP Phone 8961, 9951, and 9971, page 1-2

• What Networking Protocols are Used?, page 1-10

• What Features are Supported on the Cisco Unified IP Phone 8961, 9951, and 9971?, page 1-13

• Understanding Security Features for Cisco Unified IP Phones, page 1-15

• Overview of Configuring and Installing Cisco Unified IP Phones, page 1-23

• Terminology Information, page 1-30

Caution Using a cell, mobile, or GSM phone, or two-way radio in close proximity to a Cisco Unified IP Phone

might cause interference. For more information, refer to the manufacturer’s documentation of the interfering device.

Cisco Unified IP Phone 8961, 9951, and 9971 Administration Guide for Cisco Unified Communications Manager 8.5 (SIP)

1-1

Chapter 1 An Overview of the Cisco Unified IP Phone

Understanding the Cisco Unified IP Phone 8961, 9951, and 9971

Figure 1-1 shows the main components of the Cisco Unified IP Phone 8961.

Figure 1-1 Cisco Unified IP Phone 8961

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12 1113

10 9

3 4

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Ta ble 1- 1 describes the buttons on the Cisco Unified IP Phone 8961.

Table 1-1 Features on the Cisco Unified IP Phone 8961

Phone screen Shows information about your phone, including directory number, call information (for

example caller ID, icons for an active call or call on hold) and available softkeys.

Session buttons Each represents a call session and takes the default action for that session. For example, pressing

the session button for a ringing call answers the call, while pressing the session button for a held call resumes the call.

Color LEDs reflect the call state. LEDs can flash (blink on and off rapidly), pulse (alternately dim and brighten), or appear solid (glow without interruption).

• Flashing amber—Ringing call

• Solid green—Connected call or an outgoing call that is not yet connected

• Pulsing green—Held call

• Solid red—Shared line in-use remotely

• Pulsing red—Shared line call put on hold remotely (when Privacy is off)

(The position of session buttons may be reversed with that of programmable feature buttons on phones using a locale with a right-to-left reading orientation, such as Hebrew and Arabic.)

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Chapter 1 An Overview of the Cisco Unified IP Phone

Understanding the Cisco Unified IP Phone 8961, 9951, and 9971

Table 1-1 Features on the Cisco Unified IP Phone 8961 (continued)

Softkey buttons Allow you to access the softkey options displayed on your phone screen.

Back button Returns to the previous screen or menu.

Release button Ends a connected call or session.

Navigation pad and

Select button

Conference button Creates a conference call.

Hold button Places a connected call on hold.

Transfer button Transfers a call.

Keypad Allows you to dial phone numbers, enter letters, and choose menu items (by entering the item

Speakerphone

button

Mute button Toggles the microphone on or off during a call. When the microphone is muted, the button is

The four-way Navigation pad allows you to scroll through menus, highlight items, and move within a text input field.

The Select button (center of the Navigation pad) allows you to select a highlighted item, disable the phone screen for cleaning, or enable the phone screen if it is in power-save mode.

The Select button is lit (white) when the phone is in power-save mode.

number).

Selects the speakerphone as the default audio path and initiates a new call, picks up an incoming call, or ends a call. During a call, the button is lit green.

The speakerphone audio path does not change until a new default audio path is selected (for example, by picking up the handset).

If external speakers are connected, the Speakerphone button selects them as the default audio path.

lit red.

Headset button Selects the wired headset as the default audio path and initiates a new call, picks up an incoming

call, or ends a call. During a call, the button is lit green.

A headset icon in the phone screen header line indicates the headset is the default audio path. This audio path does not change until a new default audio path is selected (for example, by picking up the handset).

Volume button Controls the handset, headset, and speakerphone volume (off-hook) and the ringer volume

(on-hook).

Silences the ringer on the phone if an incoming call is ringing.

Messages button Auto-dials your voicemail system (varies by system).

Applications button Opens the Applications menu. Depending on how your system administrator sets up the phone,

use it to access applications such as call history, preferences, and phone information.

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1-3

Chapter 1 An Overview of the Cisco Unified IP Phone

Understanding the Cisco Unified IP Phone 8961, 9951, and 9971

Table 1-1 Features on the Cisco Unified IP Phone 8961 (continued)

Contacts button Opens the Contacts menu. Depending on how your system administrator sets up the phone, use

it to access personal directory, corporate directory, or call history.

Phone display Phone display that can be positioned to your preferred viewing angle.

Programmable

feature buttons

Handset with light

strip

Programmable feature buttons that correspond to phone lines, speed dials, and calling features.

Pressing a button for a phone line displays the active calls for that line. If you have multiple lines, you might have an All Calls feature button that displays a consolidated list of calls from all lines.

Color LEDs indicate the line state:

• Amber—Ringing call on this line

• Green—Active or held call on this line

• Red—Shared line in-use remotely

(The position of programmable feature buttons may be reversed with that of session buttons on phones using a locale with a right-to-left reading orientation, such as Hebrew and Arabic.)

The handset light strip lights up to indicate a ringing call (flashing red) or a new voice message (steady red).

Figure 1-2 shows the main components of the Cisco Unified IP Phone 9951.

Figure 1-2 Cisco Unified IP Phone 9951

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3 4

1-4

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Chapter 1 An Overview of the Cisco Unified IP Phone

Understanding the Cisco Unified IP Phone 8961, 9951, and 9971

Ta ble 1- 2 describes the buttons on the Cisco Unified IP Phone 9951.

Table 1-2 Features on the Cisco Unified IP Phone 9951

Phone screen Shows information about your phone, including directory number, call information (for

example caller ID, icons for an active call or call on hold) and available softkeys.

Session buttons Each represents a call session and takes the default action for that session. For example,

pressing the session button for a ringing call answers the call, while pressing the session button for a held call resumes the call.

Color LEDs reflect the call state. LEDs can flash (blink on and off rapidly), pulse (alternately dim and brighten), or appear solid (glow without interruption).

• Flashing amber—Ringing call

• Solid green—Connected call or an outgoing call that is not yet connected

• Pulsing green—Held call

• Solid red—Shared line in-use remotely

• Pulsing red—Shared line call put on hold remotely

(The position of session buttons may be reversed with that of programmable feature buttons on phones using a locale with a right-to-left reading orientation, such as Hebrew and Arabic.)

Softkey buttons Allow you to access the softkey options displayed on your phone screen.

Back button Returns to the previous screen or menu.

Release button Ends a connected call or session.

Navigation pad and

Select button

The four-way Navigation pad allows you to scroll through menus, highlight items, and move within a text input field.

The Select button (center of the Navigation pad) allows you to select a highlighted item, disable the phone screen for cleaning, or enable the phone screen if it is in power-save mode.

The Select button is lit (white) when the phone is in power-save mode.

Conference button Creates a conference call.

Hold button Places a connected call on hold.

Transfer button Transfers a call.

Keypad Allows you to dial phone numbers, enter letters, and choose menu items (by entering the

item number).

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1-5

Chapter 1 An Overview of the Cisco Unified IP Phone

Understanding the Cisco Unified IP Phone 8961, 9951, and 9971

Table 1-2 Features on the Cisco Unified IP Phone 9951 (continued)

Speakerphone button Selects the speakerphone as the default audio path and initiates a new call, picks up an

incoming call, or ends a call. During a call, the button is lit green.

The speakerphone audio path does not change until a new default audio path is selected (for example, by picking up the handset).

If external speakers are connected, the Speakerphone button selects them as the default audio path.

Mute button Toggles the microphone on or off during a call. When the microphone is muted, the button

is lit red.

Headset button Selects the wired headset as the default audio path and initiates a new call, picks up an

incoming call, or ends a call. During a call, the button is lit green.

Volume button Controls the handset, headset, and speakerphone volume (off-hook) and the ringer volume

(on-hook).

Silences the ringer on the phone if an incoming call is ringing.

Messages button Auto-dials your voicemail system (varies by system).

Applications button Opens the Applications menu. Depending on how your system administrator sets up the

phone, use it to access applications such as call history, preferences, and phone information.

Contacts button Opens the Contacts menu. Depending on how your system administrator sets up the phone,

use it to access personal directory, corporate directory, or call history.

Phone display Phone display that can be positioned to your preferred viewing angle.

Programmable feature

buttons

Programmable feature buttons that correspond to phone lines, speed dials, and calling features.

Color LEDs indicate the line state:

• Amber—Ringing call on this line

• Green—Active or held call on this line

• Red—Shared line in-use remotely

(The position of programmable feature buttons may be reversed with that of session buttons on phones using a locale with a right-to-left reading orientation, such as Hebrew and Arabic.)

Handset with light

strip

The handset light strip lights up to indicate a ringing call (flashing red) or a new voice message (steady red).

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Cisco Unified IP Phone 8961, 9951, and 9971 Administration Guide for Cisco Unified Communications Manager 8.5 (SIP)

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Chapter 1 An Overview of the Cisco Unified IP Phone

Figure 1-3 shows the main components of the Cisco Unified IP Phone 9971.

Figure 1-3 Cisco Unified IP Phone 9971

19 18

Understanding the Cisco Unified IP Phone 8961, 9951, and 9971

15 14

711 1012 9 8

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Cisco Unified IP Phone 8961, 9951, and 9971 Administration Guide for Cisco Unified Communications Manager 8.5 (SIP)

1-7

Chapter 1 An Overview of the Cisco Unified IP Phone

Understanding the Cisco Unified IP Phone 8961, 9951, and 9971

Table 1-3 describes the buttons on the Cisco Unified IP Phone 9971.

Table 1-3 Features on the Cisco Unified IP Phone 9971

Phone screen Shows information about your phone, including directory number, call information (for

example caller ID, icons for an active call or call on hold) and available softkeys.

Phone screen items, such as menu options and softkeys, are touch-sensitive.

Session buttons Each represents a call session and takes the default action for that session. For example,

pressing the session button for a ringing call answers the call, while pressing the session button for a held call resumes the call.

Color LEDs reflect the call state. LEDs can flash (blink on and off rapidly), pulse (alternately dim and brighten), or appear solid (glow without interruption).

• Flashing amber—Ringing call

• Solid green—Connected call or an outgoing call that is not yet connected

• Pulsing green—Held call

• Solid red—Shared line in-use remotely

• Pulsing red—Shared line call put on hold remotely

(The position of session buttons may be reversed with that of programmable feature buttons on phones using a locale with a right-to-left reading orientation, such as Hebrew and Arabic.)

Back button Returns to the previous screen or menu.

Release button Ends a connected call or session.

Navigation pad and

Select button

The four-way Navigation pad allows you to scroll through menus, highlight items, and move within a text input field.

The Select button (center of the Navigation pad) allows you to select a highlighted item, disable the phone screen for cleaning, or enable the phone screen if it is in power-save mode.

The Select button is lit (white) when the phone is in power-save mode.

Conference button Creates a conference call.

Hold button Places a connected call on hold.

Transfer button Transfers a call.

Keypad Allows you to dial phone numbers, enter letters, and choose menu items (by entering the item

number).

Speakerphone

button

Selects the speakerphone as the default audio path and initiates a new call, picks up an incoming call, or ends a call. During a call, the button is lit green.

The speakerphone audio path does not change until a new default audio path is selected (for example, by picking up the handset).

If external speakers are connected, the Speakerphone button selects them as the default audio path.

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Chapter 1 An Overview of the Cisco Unified IP Phone

Understanding the Cisco Unified IP Phone 8961, 9951, and 9971

Table 1-3 Features on the Cisco Unified IP Phone 9971 (continued)

Mute button Toggles the microphone on or off during a call. When the microphone is muted, the button is

lit red.

Headset button Selects the wired headset as the default audio path and initiates a new call, picks up an

incoming call, or ends a call. During a call, the button is lit green.

Volume button Controls the handset, headset, and speakerphone volume (off-hook) and the ringer volume

(on-hook).

Silences the ringer on the phone if an incoming call is ringing.

Messages button Auto-dials your voicemail system (varies by system).

Applications button Opens the Applications menu. Depending on how your system administrator sets up the

phone, use it to access applications such as call history, preferences, and phone information.

Contacts button Opens the Contacts menu. Depending on how your system administrator sets up the phone,

use it to access personal directory, corporate directory, or call history.

Phone display Phone display that can be positioned to your preferred viewing angle.

Programmable

feature buttons

Programmable feature buttons that correspond to phone lines, speed dials, and calling features.

Color LEDs indicate the line state:

• Amber—Ringing call on this line

• Green—Active or held call on this line

• Red—Shared line in-use remotely

(The position of programmable feature buttons may be reversed with that of session buttons on phones using a locale with a right-to-left reading orientation, such as Hebrew and Arabic.)

Handset with light

strip

The handset light strip lights up to indicate a ringing call (flashing red) or a new voice message (steady red).

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Chapter 1 An Overview of the Cisco Unified IP Phone

What Networking Protocols are Used?

Cisco Unified IP Phones support several industry-standard and Cisco networking protocols required for voice communication. Table 1 -4 provides an overview of the networking protocols that the Cisco Unified IP Phone 8961, 9951, and 9971 support.

Table 1-4 Supported Networking Protocols on the Cisco Unified IP Phone

Networking Protocol Purpose Usage Notes

Bluetooth Bluetooth is a wireless personal area

network (WPAN) protocol that specifies how devices communicate over short distances.

Bootstrap Protocol (BootP)

Cisco Audio Session Tunnel (CAST)

Cisco Discovery Protocol (CDP)

Cisco Peer-to-Peer Distribution Protocol (CPPDP)

Dynamic Host Configuration Protocol (DHCP)

BootP enables a network devi ce such as the Cisco Unified IP Phone to discover certain startup information, such as its IP address.

The CAST protocol allows the Cisco Unified IP Phones and associated applications to discover and communicate with the remote IP phones without requiring changes to the traditional signaling components such as Cisco Unified CM and gateway s.

CDP is a device-discovery protocol that runs on all Cisco-manufactured equipment.

Using CDP, a device can advertise its existence to other devices and receive information about other devices in the network.

CPPDP is a Cisco proprietary protocol used to form a peer to peer hierarchy of devices. This hierarchy is used to distribute firmware files from peer devices to their neighboring devices.

DHCP dynamically allocates and assigns an IP address to network devices.

DHCP enables you to connect an IP phone into the network and have the phone become operational without your needing to manually assign an IP address or to configure additional network parameters.

Cisco Unified IP Phone 9951 and 9971 support Bluetooth 2.1

—

The Cisco Unified IP Phone uses CAST as an interface between CUVA and Unified CM using the Cisco IP Phone as a SIP proxy.

The Cisco Unified IP Phone uses CDP to communicate information such as auxiliary VLAN ID, per port power management details, and Quality of Service (QoS) configuration information with the Cisco Catalyst switch.

CPPDP is used by the Peer Firmware Sharing feature.

DHCP is enabled by default. If disabled, you must manually configure the IP address, subnet mask, gateway, and a TFTP server on each phone locally.

Cisco recommends that you use DHCP custom option 150. With this method, you configure the TFTP server IP address as the option value. For additional supported DHCP configurations, go to the Dynamic Host Configuration Protocol chapter and the Cisco TFTP chapter in the Cisco Unified Communications Manager System Guide.

Note If you cannot use option 150, you may try

using DHCP option 66.

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Chapter 1 An Overview of the Cisco Unified IP Phone

What Networking Protocols are Used?

Table 1-4 Supported Networking Protocols on the Cisco Unified IP Phone (continued)

Networking Protocol Purpose Usage Notes

Hypertext Transfer Protocol (HTTP)

Hypertext Transfer Protocol Secure (HTTPS)

IEEE 802.1X The IEEE 802.1X standard defines a

IEEE 802.11a/b/g The IEEE 802.11 standard specifies how

Internet Protocol (IP) IP is a messa ging protocol that addresses

HTTP is the standard way of transferring information and moving documents across the Internet and the web.

Hypertext Transfer Protocol Secure (HTTPS) is a combination of the Hypertext Transfer Protocol with the SSL/TLS protocol to provide encryption and secure identification of servers.

client-server-based access control and authentication protocol that restricts unauthorized clients from connecting to a LAN through publicly accessible ports.

Until the client is authenticated, 802.1X access control allows only Extensible Authentication Protocol over LAN (EAPOL) traffic through the port to which the client is connected. After authentication is successful, normal traffic can pass through the port.

devices communication over a wireless local area network (WLAN).

802.11a operates at the 5 GHz band and

802.11b and 802.11g operate at the 2.4 GHz band

and sends packets across the network.

Cisco Unified IP Phones use HTTP for the XML services and for troubleshooting purposes

Web applications with both HTTP and HTTPS support have two URLs configured. Cisco Unified IP Phones that support HTTPS choose the HTTPS URL.

The Cisco Unified IP Phone implements the IEEE

802.1X standard by providing suppo rt for the following authentication methods: EAP-FAST, EAP-TLS, and EAP-MD5.

When 802.1X authentication is enabled on the phone, you should disable the PC port and voice VLAN. Refer to the “Supporting 802.1X

Authentication on Cisco Unified IP Phon es” section on page 1-22 for additional information.

(Cisco Unified IP Phone 9971 only) The 802.11 interface is a deployment option for cases when Ethernet cabling is unavailable or undesirable.

To communicate using IP, network devices must have an assigned IP address, subnet, and gatewa y.

Link Layer Discovery Protocol (LLDP)

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LLDP is a standardized network discovery protocol (similar to CDP) that is supported on some Cisco and third-party devices.

IP addresses, subnets, and gateways identificati ons are automatically assigned if you are using the Cisco Unified IP Phone with Dynamic Host Configuration Protocol (DHCP). If you are not using DHCP, you must manually assign these properties to each phone locally.

The Cisco Unified IP Phone supports LLDP on the PC port.

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What Networking Protocols are Used?

Table 1-4 Supported Networking Protocols on the Cisco Unified IP Phone (continued)

Networking Protocol Purpose Usage Notes

Link Layer Discovery Protocol-Media Endpoint Devices (LLDP-MED)

Real-Time Transport Protocol (RTP)

Real-Time Control Protocol (RTCP)

Session Description Protocol (SDP)

Session Initiation Protocol (SIP)

Transmission Control Protocol (TCP)

Transport Layer Security TLS is a standard protocol for securing

LLDP-MED is an extension of the LLDP standard developed for voice products.

RTP is a standard protocol for transporting real-time data, such as interactive voice and video, over data networks.

RTCP works in conjunction with RTP to provide QoS data (such as jitter, latency, and round trip delay) on RTP streams.

SDP is the portion of the SIP protocol that determines which parameters are available during a connection between two endpoints. Conferences are established by using only the SDP capabilities that are supported by all endpoints in the conference.

SIP is the Internet Engineering T ask Force (IETF) standard for multimedia conferencing over IP. SIP is an ASCII-based application-layer control protocol (defined in RFC 3261) that can be used to establish, maintain, and terminate calls between two or more endpoints.

TCP is a connection-oriented transport protocol.

and authenticating communications.

The Cisco Unified IP Phone supports LLDP-MED on th e S W p o r t t o communicate information such as:

• Voice VLAN configuration

• De vice disco very

• Power management

• Inv entory m anage ment

For more information about LLDP-MED support, see the LLDP-MED and Cisco Discovery Protocol white paper:

http://www.cisco.com/en/US/tech/tk652/tk701/tech nologies_white_paper0900aecd804cd46d.shtml

Cisco Unified IP Phones use the RTP protocol to send and receive real-time voice traffic from other phones and gateways.

RTCP is disabled by default, but you can enable it on a per phone basis by using Cis co Unified Communications Manager.

SDP capabilities, such as codec types, DTMF detection, and comfort noise, are normally configured on a global basis by Cisco Unified Communications Manager or Media Gateway in operation. Some SIP endpoints may allow these parameters to be configured on the endpoint itself.

Like other VoIP protocols, SIP is designed to address the functions of signaling and session management within a packet telephony network. Signaling allows call information to be carried across network boundaries. Session management provides the ability to control the attributes of an end-to-end call.

Cisco Unified IP Phones use TCP to connect to Cisco Unified Communication s Manage r and to access XML services.

When security is implemented, Cisco Unified IP Phones use the TLS protocol when securely registering with Cisco Unified Communications Manager.

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What Features are Supported on the Cisco Unified IP Phone 8961, 9951, and 9971?

Table 1-4 Supported Networking Protocols on the Cisco Unified IP Phone (continued)

Networking Protocol Purpose Usage Notes

Trivial File Transfer Protocol (TFTP)

User Datagram Protocol (UDP)

Related Topics

• Understanding Interactions with Other Cisco Unified IP Telephony Products, page 2-1

• Understanding the Phone Startup Process, page 2-7

• Ethernet Setup Menu, page 7-4

TFTP allows you to transfer files over the network.

On the Cisco Unified IP Phone, TFTP enables you to obtain a configuration file specific to the phone type.

UDP is a connectionless messaging protocol for delivery of data packets.

TFTP requires a TFTP server in your network, which can be automatically identified from the DHCP server. If you want a phone to use a TFTP server other than the one specified by the DHCP server, you must manually assign the IP address of the TFTP server by using the Network Configuration menu on the phone.

For more information, go to the Cisco TFTP chapter in the Cisco Unified Communications Manager System Guide.

Cisco Unified IP Phones transmit and receive RTP streams, which utilize UDP.

What Features are Supported on the Cisco Unified IP

Phone 8961, 9951, and 9971?

Cisco Unified IP Phones function much like a digital business phone, allowing you to place and receive phone calls. In addition to traditional telephony features, the Cisco Unified IP Phone includes features that enable you to administer and monitor the phone as a network device.

This section includes the following topics:

• Feature Overview, page 1-13

• Configuring Telephony Features, page 1-14

• Configuring Network Parameters Using the Cisco Unified IP Phone, page 1-14

• Providing Users with Feature Information, page 1-15

Feature Overview

Cisco Unified IP Phones provide traditional telephony functionality, such as call forwarding and transferring, redialing, speed dialing, conference calling, and voice messaging system access. Cisco Unified IP phones also provide a variety of other features. For an overview of the telephony features that the Cisco Unified IP Phone supports and for tips on configuring them, see the “Telephony

Features Available for the Cisco Unified IP Phone” section on page 8-2 .

As with other network devices, you must configure Cisco Unified IP Phones to prepare them to access Cisco Unified Communications Manager and the rest of the IP network. By using DHCP , you have fewer settings to configure on a phone, but if your network requires it, you can manually configure an IP

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What Features are Supported on the Cisco Unified IP Phone 8961, 9951, and 9971?

address, TFTP server, subnet information, and so on. For instructions on configuring the network settings on the Cisco Unified IP Phones, see Chapter 7, “Configuring Settings on the Cisco Unified

IP Phone.”

Cisco Unified IP Phones can interact with other services and devices on your IP network to provide enhanced functionality. For example, you can integrate Cisco Unified Communications Manager with the corporate Lightweight Directory Access Protocol 3 (LDAP3) standard directory to enable users to search for co-worker contact information directly from their IP phones. You can also use XML to enable users to access information such as weather, stocks, quote of the day , and other web-based information. For information about configuring such services, see the “Configuring Corporate and Personal

Directories” section on page 8-27 and the “Setting Up Services” section on page 8-32.

Finally, because the Cisco Unified IP Phone is a network device, you can obtain detailed status information from it directly. This information can assist you with troubleshooting any problems users might encounter when using their IP p hones. See Chapter 10, “Viewing Model Inform at ion, S t atus, and

Statistics on the Cisco Unified IP Phone,” for more information.

Related Topics

• Configuring Settings on the Cisco Unified IP Phone, page 7-1

• Configuring Features, Templates, Services, and Users, page 8-1

Chapter 1 An Overview of the Cisco Unified IP Phone

• Troubleshooting and Maintenance, page 12-1

Configuring Telephony Features

You can modify additional settings for the Cisco Unified IP Phone from Cisco Unified Communications Manager Administration. Use this web-based application t o set up phone registration criteria and calling search spaces, to configure corporate directories and services, and to modify phone button templates, among other tasks. See the “Telephony Features Available for the Cisco Unified IP Phone” section on

page 8-2 and the Cisco Unified Communications Manager documentation for additional information.

For more information about Cisco Unified Communications Manager Administration, refer to Cisco Unified Communications Manager documentation, including Cisco Unified Communications Manager Administration Guide. You can also use the context-sensitive help available within the application for guidance.

You can access Cisco Unified Communications Manager docume ntati on at thi s location :

http://www.cisco.com/en/US/products/sw/voicesw/ps556/tsd_products_support_series_home.html

You can access Cisco Unified Communications Manager Business Edition documentation at this location:

http://www.cisco.com/en/US/products/ps7273/tsd_products_support_series_home.html

Configuring Network Parameters Using the Cisco Unified IP Phone

You can configure parameters such as DHCP, TFTP, and IP settings on the phone itself. You can also obtain statistics about a current call or firmware versions on the phone.

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Chapter 1 An Overview of the Cisco Unified IP Phone

For more information about configuring features and viewing statistics from the phone, see Chapter 7,

“Configuring Settings on the Cisco Unified IP Phone” and see Chapter 10, “Viewing Model Information, Status, and Statistics on the Cisco Unified IP Phone.”

Providing Users with Feature Information

If you are a system administrator, you ar e likely th e pr imary source of in format ion for Cisco Unified IP Phone users in your network or company. To ensure that you distribute the most current feature and procedural information, familiarize yourself with Cisco Unified IP Phone documentation. Make sure to visit the Cisco Unified IP Phone web sit e:

http://www.cisco.com/en/US/products/ps10453/products_user_guide_list.html

From this site, you can view various user guid es. In addition to providing documentation, it is important to inform users of available Cisco Unified IP

Phone features, including those specific to your company or network, and of how to access and customize those features, if appropriate.

For a summary of some of the key information that phone users need their system administrators to provide, see Appendix A, “Providing Information to Users Via a Website.”

Understanding Security Features for Cisco Unified IP Phones

Implementing security in the Cisco Unified Communications Manager system prevents identity theft of the phone and Cisco Unified Communications Manager server, prevents data tampering, and prevents call signaling and media stream tampering.

To alleviate these threats, the Cisco IP telephony network establishes and maintains secure (encrypted) communication streams between a phone and the server, digitally signs files before they are transferred to a phone, and encrypts media streams and call signaling between Cisc o Unified IP p hones.

The Cisco Unified IP Phone 8961, 9951, and 9971 use the Phone security profile, which defines whether the device is nonsecure or secure. For information on applying the securit y profile to th e phone, refer t o the Cisco Unified Communications Manager Security Guide.

If you configure security-related settings in Cisco Unified Communications Manager Administration, the phone configuration file will contain sensitive information. To ensure the privacy of a configuration file, you must configure it for encryption. For detailed in formation, ref er to the “Confi guring Encrypted Phone Configuration Files” chapter in Cisco Unified Communications Manager Security Guide.

Ta ble 1- 5 shows where you can find information about security in this and other documents.

Table 1-5 Cisco Unified IP Phone and Cisco Unified Communications Manager Security Topics

Topic Reference

Detailed explanation of security, including set up, configuration, and troubleshooting information for Cisco Unified Communications Manager and Cisco Unified IP Phon es

Security features supported on the Cisco Unified IP Phone

Restrictions regarding security features See the “Security Restrictions” section on page 1-23

Refer to the Cisco Unified Communications Manager Security Guide.

See the “Overview of Supported Security Features” section on page 1-16

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Understanding Security Features for Cisco Unified IP Phones

Table 1-5 Cisco Unified IP Phone and Cisco Unified Communications Manager Security Topics (continued)

Topic Reference

Viewing a security profile name Table 1-6 provides an overview of the security features that the

Cisco Unified IP Phone 8961, 9951, and 9971 support. For more information about these features and about Cisco Unified Communications Manager and Cisco Unified IP Phone security, refer to the Cisco Unified Communications Manager Security Guide.

Identifying phone calls for which security is implemented

Extension Mobility HTTPS Support See the “What Networking Protocols are Used?” section on page 1-10 TLS connection

Security and the phone startup process See the “Understanding the Phone Startup Process” section on page 2-7 Security and phone configuration files See the “Adding Phones to the Cisco Unified Communications Manager

Changing the TFTP Server 1 or TFTP Server 2 option on the phone when security is implemented.

Items on the Security Setup menu that you access from the phone

Disabling access to a phone’s web pages See the “Enabl ing and Di sabling Web Page Access” section on page 11-3 Troubleshooting

Deleting the CTL file from the phone See the “Resetting the Cisco Unified IP Phone” section on page 12-15 Resetting or restoring the phone See the “Resetting the Cisco Unified IP Phone” section on page 12-15

802.1X Authentication for Cisco Unified IP Phones

See the “Identifying Secure (Encrypted) Phone Calls” section on page 1-19

• See the “What Networking Protocols are Used?” section on page 1-10

• See the “Adding Phones to the Cisco Unified Communications

Manager Database” section on page 2-9

Database” section on page 2-9

See the “IPv4 Setup Menu Options” section on page 7-10

See the “Security Setup Menu” section on page 7-13

• See the “Troubleshooting Cisco Unified IP Phone Security” section on

page 12-9

• Refer to the Troubleshooting Gu ide for Cisco Unified Communications

Manager

See these sections:

• “Supporting 802.1X Authentication on Cisco Unified IP Phones”

section on page 1-22

• “Security Setup Menu” section on page 7-13

• “Status Menu” section on page 10-2

• “Troubleshooting Cisco Unified IP Phone Security” section on

page 12-9

Overview of Supported Security Features

Ta ble 1- 6 provides an overview of the security features that the Cisco Unified IP Phone 8961, 9951, and

9971 support. For more information about these features and about Cisco Unified Communications Manager and Cisco Unified IP Phone security, refer to Cisco Unified Communications Manager Security Guide.

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Understanding Security Features for Cisco Unified IP Phones

For information about current security settings on a phone, press and choose Administrator Settings > Security Setup. For more information, see the “Security Setup Menu” section on page 7-13.

Table 1-6 Overview of Security Features

Feature Description

Image authentication Signed binary files (with the extension .sbn) prevent tampering with the firmware

image before it is loaded on a phone. Tampering with the image causes a phone to fail the authentication process and reject the new image.

Image Encryption Encrypted binary files (with the extension .sebn) prevent tampering with the firmware

image before it is loaded on a phone. Tampering with the image causes a phone to fail the authentication process and reject

the new image.

Customer-site certificate installation

Device authentication Occurs between the Cisco Unified Communications Manager server and the phone

File authentication Validates digitally signed files that the phone downloads. The phone validates the

File encryption Encryption prevents sensitive information from being revealed while the file is in

Signaling Authentication Uses the TLS pro tocol to validate that no tampering has occurred to signaling packets

Manufacturing installed certificate Each Cisco Unified IP Phone contains a unique manufacturing installed certificate

Media encryption Uses SR TP to ensure that the media streams between supported devices proves secure

Each Cisco Unified IP Phone requires a unique certificate for device authentication. Phones include a manufacturing installed certificate (MIC), but for addi tional security , you can specify in Cisco Unified Communications Manager Administration that a certificate be installed by using the Certificate Authority Proxy Function (CAPF). Alternatively , you can install a Locally Sign ificant Certificate (LSC) from the Security Configuration menu on the phone. See the “Configuring Security on th e Cisco Unified

IP Phone” section on page 3-21 for more information.

when each entity accepts the certificate of the other entity. Determines whether a secure connection between the phone and a Cisco Unified Communications Manager should occur; and, if necessary, creates a secure signaling path between t he entiti es by using TLS protocol. Cisco Unified Communications Man ager will not regist er ph ones unless they can be authenticated by the Cisco Unified Communications Manager.

signature to make sure that file tampering did not occur after the file creation. Files that fail authentication are not written to Flash memory on the phone. The phone rejects such files without further processing.

transit to the phone. In addition the phone validat es the signat ure to make sure that file tampering did not occur after the file creation. Files that fail authentication are not written to Flash memory on the phone. The phone rejects such files without further processing.

during transmission.

(MIC), which is used for device authentication. The MIC is a permanent unique proof of identity for the phone, and allows Cisco Unified Communications Manager to authenticate the phone.

and that only the intended device receives and reads the data. Includes creating a media master key pair for the devices, delivering the keys to the devices, and securing the delivery of the keys while the keys are in transport.

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Understanding Security Features for Cisco Unified IP Phones

Table 1-6 Overview of Security Features (continued)

Feature Description

CAPF (Certificate Authority Proxy Function)

Security profiles Defines whether the phone is nonsecure, authenticated, encrypted, or protected. See

Encrypted configuration files Lets you ensure the privacy of phone configuration files. Optional disabling of the web

server functionality for a phone

Phone hardening Additional security options, which you control from Cisco Unified Communications

Implements parts of the certificate generation procedure that are too processing-intensive for the phone, and interacts with the phone for key generation and certificate installation. The CAPF can be configured to request certificates from customer-specified certificate authorities on behalf of the phone, or it can be configured to generate certificates locally.

Ta ble 1- 6, which provides an overview of the security features that the Cisco Unified

IP Phone 9971 supports. For more information about these features and about Cisco Unified Communications Manager and Cisco Unified IP Phone security, refer to the Cisco Unified Communications Manager Security Guide.

For security purposes, you can prevent access to a phone’s web page (which displays a variety of operational statistics for the phone) and user options pages. For more information, see the “Enabling and Disabling Web Page Access” section on page 11-3.

Manager Administration:

• Disabling PC port

• Disabling Gratuitous ARP (GARP)

• Disabling PC Voice VLAN access

• Disabling acce ss to the Setting menus, or providing restricted access that allows

access to the Preferences menu and saving volume changes only

• Disabling acce ss to web pages for a phone

• Disabling Bluetooth Accessory Port

802.1X Authentication The Cisco Unified IP Phone can use 802.1X authentication to request and gain access to the network. See the “Supporting 802.1X Authentication on Cisco Unified IP

Phones” section on page 1-22 for more information.

Secure SIP Failover for SRST After you configure an SRST reference for security and then reset the dependent

devices in Cisco Unified CM Administration, the TFTP server adds the SRST certificate to the phone cnf.xml file and sends the file to the phone. A secure phone then uses a TLS connection to interact with the SRST-enabled router.

Signaling encryption Ensures that all SCCP and SIP signaling messages that are sent between the device and

the Cisco Unified CM server are encrypted.

Related Topics

• Identifying Secure (Encrypted) Phone Calls, page 1-19

• Security Restrictions, page 1-23

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Understanding Security Profiles

All Cisco Unified IP Phones that support Cisco Unified Communications Manager use a security profile, which defines whether the phone is nonsecure, authenticated, or encrypted. For information about configuring the security profile and applying the profile to the phone, refer to Cisco Unified Communications Manager Security Guide.

To view the security mode that is set for the phone, look at the Security Mode setting in the Security Configuration menu. For more information, see the “Security Setup Menu” section on page 7-13.

Related Topics

• Identifying Secure (Encrypted) Phone Calls, page 1-19

• Security Restrictions, page 1-23

Identifying Secure (Encrypted) Phone Calls

When security is implemented for a phone, you can identify secure phone calls by icons on the phone screen. You can also determine if the connected phone is secure and protected if a security tone plays at the beginning of the call.

Understanding Security Features for Cisco Unified IP Phones

In a secure call, all call signaling and media streams are encrypted. A secure call offers a high level of security, providing integrity and privacy to the call. When a call in progress is being encrypted, the call progress icon to the right of the call duration timer in the phone screen changes to the following icon:

Note If the call is routed through non-IP call legs, for example, PSTN, the call may be nonsecure even though

it is encrypted within the IP network and has a lock icon associated with it.

In a secure call, a security tone plays at the beginning of a call to indicate that the other connected phone is also receiving and transmitting secure audio and video (if video is inv olved). If your call is connected to a non-secure phone, the security tone does not play.

Note Secure calling is supported for connections between two phones only . Some features, such as conference

calling, shared lines, and Extension Mobility are not available when secure calling is configured.

Establishing and Identifying Secure Conference Calls

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You can initiate a sec ure conference call and monitor the security level of participants. A secure conference call is established using this process:

1. A user initiates the conference from a secure phone.

2. Cisco Unified Comm unication s Manage r assigns a secure confere nce bridge to the call.

3. As participants are added, Cisco Unified Communications Manager verifies the security mode of

each phone and maintains the secure level for the conference.

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Understanding Security Features for Cisco Unified IP Phones

4. The phone displays the security level of the conference call. A secure conference displays icon

to the right of “Conference” on the phone screen.

Note There are interactions, restrictions, and limitations that affect the security level of the conference call

depending on the security mode of the participant’s phones and the availability of secure conference bridges. See Table 1-7 and Table 1-8 for information about these interactions .

Establishing and Identifying Secure Calls

A secure call is established when your phone, and the phone on the other end, is configured for secure calling. The other phone can be in the same Cisco IP network, or on a network outside the IP network. Secured calls can only be made between two phones. Conference calls and other multiple-line calls are not supported.

A secured call is established using this process:

1. A user initiates th e call from a secured phon e (secured secu rity mode).

2. The phone displays the icon (secure) on the phone screen. This icon indicates that the phone is

configured for secure calls, but this does not mean that the other connected phone is also secured.

Chapter 1 An Overview of the Cisco Unified IP Phone

3. A security tone plays if the call is connected to another secured phone, indicating that both ends of

the conversation are encrypted and secured. If the call is connected to a non-secured phone, then the secure tone is not played.

Note Secured calling is supported for conversations between two phones. Some features, such as conference

calling, shared lines, and Cisco Extension Mobility are not available when secured calling is configured.

Call Security Interactions and Restrictions

Cisco Unified Communication s Manage r checks the phone security status when conferences are established and changes the security indication for the conference or blocks the completion of the call to maintain integrity and also security in the system. call security levels when using Barge.

Table 1-7 Call Security Interactions When Using Barge

Initiator’s Phone Security Level Feature Used Call Security Level Results of Action

Non-secure Barge Encrypted call Call barged and identified as non-secure call Secure Barge Encrypted call Call barged and identified as secure call

Ta ble 1- 8 provides information about changes to conference security levels depending on the in itiat or’s

phone security level, the security levels of participants, and the availability of secure conference bridges.

Table 1-7 provides information about changes to

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Ta b l e 1-8 Security Restrictions with Conference Calls

Initiator’s Phone Security Level Feature Used Security Level of Participants Results of Action

Non-secure Conference Secure Non-secure conference bridge

Non-secure conference

Secure Conference At least one member is

non-secure.

Secure Conference Secure. Secure conference bridge

Non-secure MeetMe Minimum security level is

encrypted

Secure MeetMe Minimum security level is

non-secure

Secure conference bridge Non-secure conference

Secure encrypted level conference Initiator receives message “Does not meet Security

Level, call rejected.” Only secure conference bridge available and used Conference accepts all calls

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Chapter 1 An Overview of the Cisco Unified IP Phone

Understanding Security Features for Cisco Unified IP Phones

Supporting 802.1X Authentication on Cisco Unified IP Phones

These sections provide information about 802.1X support on the Cisco Unified IP Phones:

• Overview, page 1-22

• Required Network Components, pa ge 1-22

• Best Practices—Requirements and Recommendations, page 1-22

Overview

Cisco Unified IP phones and Cisco Catalyst switches have traditionally used Cisco Discovery Protocol (CDP) to identify each other and determine parameters such as VLAN allocation and inline power requirements. However, CDP is not used to identify any locally attached PCs; therefore, Cisco Unified IP Phones provide an EAPOL pass-through mechanism, whereby a PC locally attached to the IP phone, may pass through EAPOL messages to the 8 02.1X auth enticator in the LAN switch. This prevents the IP phone from having to act as the authe nticator, yet allows the LAN switch to authenticate a data endpoint prior to accessing the network.

In conjunction with the EAPOL pass-through mechanism, Cisco Unified IP Phones provide a proxy EAPOL-Logoff mechanism. In the event that the locally attached PC is disconnected from the IP phone, the LAN switch would not see the physical link fail, because the link between the LAN switch and the IP phone is maintained. T o avoid compromising networ k integrity , the IP phone sends an EAPOL-Logo ff message to the switch, on behalf of the downstream PC, which triggers the LAN switch to clear the authentication entry for the downstream PC.

The Cisco Unified IP phones also contain an 802.1X supplicant , in additio n to the EA POL pass-through mechanism. This supplicant allows network administrators to control the connectivity of IP phones to the LAN switch ports. The current release of the phone 802.1X supplicant uses the EAP-FAST, EAP-TLS, and EAP-MD5 options for network authentication.

Required Network Components

Support for 802.1X authentication on Cisco Unified IP Phones requires several components, including:

• Cisco Unified IP Phone—The phone acts as the 802.1X supplicant, which initiates the request to

access the network.

• Cisco Secure Access Control Server (ACS) (or other third-party authentication server)—The

authentication server and the phone must both be configured with a shared secret that is used to authenticate the phone.

• Cisco Catalyst Switch (or other third-party switch)—The switch must support 802.1X, so it can act

as the authenticator and pass the messages between the phone and the authentication server. When the exchange is completed, the switch then grants or denies the phone access to the network.

Best Practices—Requirements and Recommendations

• Enable 802.1X Authentication—If you want to use the 802.1X standard to authenticate Cisco

Unified IP Phones, be sure that you have properly configured the other components before enabling it on the phone. See the more information.

“802.1X Authentication and Transaction Status” section on page 7-15 for

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• Configure PC Port—The 802.1X standard does not take into account the use of VLANs and thus

recommends that only a single device should be authenticated to a specific switch port. However, some switches (including Cisco Catalyst switches) support multi-domain authentication. The switch configuration determines whether you can connect a PC to the phone’s PC port.

–

Enabled—If you are using a switch that supports multi-domain authentication, you can enable the PC port and connect a PC to it. In this case, Cisco Unified IP Phones support proxy EAPOL-Logoff to monitor the authentication exchanges between the switch and the attached PC. For more information about IEEE 802.1X support on the Cisco Catalyst switches, refer to the Cisco Catalyst switch configuration guides at:

http://www.cisco.com/en/US/products/hw/switches/ps708/tsd_products_support_series_home. html

–

Disabled—If the switch does not suppor t multi ple 802 .1X- compli ant devices on the same port , you should disable the PC Port when 802.1X authentication is enabl ed. See the

Menu” section on page 7-4 for more information. If you do not disable this port and

subsequently attempt to attach a PC to it, the switch will deny network access to both the phone and the PC.

• Configure Voice VLAN—Because the 802.1X standard does not account for VLANs, you should

configure this setting based on the switch support.

Overview of Configuring and Installing Cisco Unified IP Phones

“Ethernet Setup

–

Enabled—If you are using a switch that supports multi-domain authenticatio n, you can continue to use the voice VLAN.

–

Disabled—If the switch does not support multi-domain authentication, di sable the Voice VLAN and consider assigning the port to the native VLAN. See the

page 7-4 for more information.

• Enter MD5 Shared Secret—If you disable 802.1X authentication or perform a factory reset on the

phone, the previously configured MD5 shared secret is deleted. See the

Transaction Status” section on page 7-15 for more information.

Security Restrictions

A user cannot barge into an encrypted call if the phone that is used to barge is not configured for encryption. When barge fails in this case, a reorder tone (fast busy tone) plays on the phone on which the user initiated the barge.

If the initiator phone is configured for encr yption, the barge ini tiator can barge into a nonsecure cal l from the encrypted phone. After the bar ge occurs, Cisco Unified Communications Manager classifies the call as nonsecure.

If the initiator phone is configured for encryption, the barge initiator can barge into an encrypted call, and the phone indicates that the call is encrypted.

“Ethernet Setup Menu” section on

“802.1X Authentication and

Overview of Configuring and Installing Cisco Unified IP Phones

When deploying a new IP telephony system, system administrators and network administrators must complete several initial configuration tasks to prepare the network for IP telephony service. For information and a checklist for setting up and configuring a Cisco IP telephony network, go to the

System Configuration Overview chapter in Cisco Unified Communications Manager System Guide.

After you have set up the IP telephony system and configured system-wide features in Cisco Unified Communications Manager, you can add IP phones to the system.

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Overview of Configuring and Installing Cisco Unified IP Phones

The following topics provide an overview of procedures for adding Cisco Unified IP Phones to your network:

• Configuring Cisco Unified IP Phones in Cisco Unified Communications Manager, page 1-24

• Installing Cisco Unified IP Phones, page 1-28

Configuring Cisco Unified IP Phones in Cisco Unified Communications Manager

To add phones to the Cisco Unified Communications Manager database, you can use:

• Auto-registration

• Cisco Unified Communications Manager Administration

• Bulk Administration Tool (BAT)

• BAT and the Tool for Auto-Registered Phones Support (TAPS)

For more information about these choices, see the “Adding Phones to the Cisco Unified

Communications Manager Database” section on page 2-9.

For general information about configuring phones in Cisco Unified Communications Manager, refer to the following documentation:

• Cisco Unified IP Phones, Cisco Unified Communications Manager System Guide

• Cisco Unified IP Phone Configuration, Cisco Unified Communications Manager Administ ration

Guide.

• Autoregistration Configuration, Cisco Unified Communications Manager Administration Guide.

• Cisco Unified Communications Manager Bulk Administration Guide.

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Chapter 1 An Overview of the Cisco Unified IP Phone

Overview of Configuring and Installing Cisco Unified IP Phones

Checklist for Configuring the Cisco Unified IP Phone 8961, 9951, and 9971 in Cisco Unified Communications Manager

Ta ble 1- 9 provides a checklist of configuration tasks for the Cisco Unified IP Phone 8961, 9951, and

9971 in Cisco Unified Communications Manager Administration. The list presents a suggested order to guide you through the phone confi gurat ion process. Some t ask s are opti onal, depend ing on y our syst em and user needs. For detailed procedures and information, refer to the sources in the list.

Table 1-9 Checklist for Configuring the Cisco Unified IP Phone 8961, 9951, and 9971 in Cisco Unified

Communications Manager

Task Purpose For More Information

1. Gather the following information about the phone:

• Phone Model

• MAC address

• Physica l location of t he phone

• Name or user ID of phone user

• Device pool

• Partition, calling search space, and loc ation

information

For more information, go to the “Cisco Unified IP

Phones chapter in the Cisco Unified Communications

Manager System Guide.

See the “Telephony Features Available for the Cisco

Unified IP Phone” section on page 8-2 .

• Number of lines and associated directory numbers

(DNs) to assign to the phone

• Cisco Unified Communications Manager user to

associate with the phone

• Phone usage information that affects phone

button template, phone features, IP Phone services, or phone applications

Provides list of configuration requirements for setting up phones.

Identifies preliminary configuration that you need to perform before configuring individual phones, such as phone button templates.

2. Verify that you have sufficient unit license for your

phone.

3. Customize phone button templates (if required).

Changes the number of line buttons, speed-dial buttons or service URL buttons. You can add a Privacy, All Calls, or Mobility button to meet user needs.

For more information, go to the “Licensing” section in the Cisco Unified Communications Manager System Guide.

For more information, go to the Phone Button Template

Configuration chapter in the Cisco Unified

Communications Manager Administration Guide. See the “Modifying Phone Button T emplates” section on

page 8-29.

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Chapter 1 An Overview of the Cisco Unified IP Phone

Overview of Configuring and Installing Cisco Unified IP Phones

Table 1-9 Checklist for Configuring the Cisco Unified IP Phone 8961, 9951, and 9971 in Cisco Unified

Communications Manager (continued)

Task Purpose For More Information

4. Add and configure the phone by completing the

required fields in the Phone Configuration window. Required fields are indicated by an asterisk (*) next to the field name; for example, MAC address and device pool.

Adds the device with its defau lt settin gs to the Cisco Unified Communications Manager database.

5. Add and configure directory numbers (lines) on the

phone by completing the required fields in the Directory Number Configurati on wind ow. Required fields are indicated by an asterisk (*) next to the field name; for example, directory number and presence group.

For more information, go to the Cisco Unified IP Phone

Configuration chapter in the Cisco Unified

Communications Manager Administration Guide. For information about Product Specific Configuration

fields, refer to “?” Button Help in the Phone Configuration window.

Note If you want to add both the phone and user to the

Cisco Unified Communicatio ns Manager database at the same time, go to the User/Phone

Add Configuration chapter in the Cisco Unified

Communications Manager Administration Guide.

For more information, go to the “Directory Number

Configuration” chapter in the Cisco Unified

Communications Manager Administration Guide. See the “Telephony Features Available for the Cisco

Unified IP Phone” section on page 8-2 .

Adds primary and secondary directory numbers and features associated with directory numbers to the phone.

6. Configure speed-dial buttons and assign speed-dial

numbers (optional). Adds speed-dial buttons and numbers. Users can change speed-dial settings on their phones

by using Cisco Unified CM User Options.

7. Configure Cisco Unified IP Phone services and assign

services (optional). Provides IP Phone services. Users can add or change services on their phones by

using the Cisco Unified CM User Options.

Note Users can subscribe to the IP phone service

only if the Enterprise Subscription check box is unchecked when the IP phone service is first configured in Cisco Unified Communications Manager Administration.

Note Some Cisco-provided default services are

classified as enterprise subscriptions, so the user cannot add them through the user optio ns pages. They are on the phone by default, and they can only be removed from the phone if you disable them in Cisco Unified Communications Manager administration.

For more information, go to the “Configuring

Speed-Dial Buttons or Abbreviated Dialing” section in

the “Cisco Unified IP Phone Configuration” chapter in the Cisco Unified Communications Manager Administration Guide.

For more information, go to the “IP Phone Services

Configuration” chapter in the Cisco Unified

Communications Manager Administration Guide. See the “Setting Up Services” section on page 8-32.

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Chapter 1 An Overview of the Cisco Unified IP Phone

Overview of Configuring and Installing Cisco Unified IP Phones

Table 1-9 Checklist for Configuring the Cisco Unified IP Phone 8961, 9951, and 9971 in Cisco Unified

Communications Manager (continued)

Task Purpose For More Information

8. Assign services to programmable buttons (optional).

Provides access to an IP phone service or URL.

9. Add user information by configuring required fields.

Required fields are indicated by an asterisk (*); for example, User ID and last name.

Note Assign a password (for User Options web

pages) and PIN (for Cisco Extension Mobility and Personal Directory)

Adds user information to the global directory for Cisco Unified Communications Manager.

For more information, go to the “ Adding a Service URL

Button” section in the Cisco Unified IP Phone Configuration chapter in the Cisco Unified

Communications Manager Administration Guide. For more information, go to the End User Configuration

chapter in the Cisco Unified Communications Manager Administration Guide.

See the “Adding Users to Cisco Unified

Communications Manager” section on page 8-33.

Note If your company uses a a Lightweight Directory

Access Protocol (LDAP) directory to store information on users, you can install and configure Cisco Unified Communications to use your existing LDAP directory, refe r t o t h e

“Configuring Corporate Directories” section on page 8-27.

10. Associate a user to a user group.

Assigns users a common list of roles and permissions that apply to all users in a user group. Administrators can manage user groups, roles, and perm issions to control the level of access (and, therefore, the level of security) for system users. For example, you must add users to the standard Cisco CCM End Users group so users can access Cisco Unified CM User Options.

11. Associate a user with a phone (optional).

Provides users with control over their phone such a forwarding calls or adding speed-dial numbers or services.

Note Some phones, such as those in conference

rooms, do not have an associated user.

Note If you want to add both the phone and user to the

Cisco Unified Communications Manager database at the same time, go to the User/Phone

Add Configurations chapter in the Cisco Unified

Communications Manager Administration Guide.

Refer to the following sectio ns in th e Cisco U nified Communications Manager Administration Guide:

• “End User Configuration Settings” section in the

“End User Configuration” chapter.

• “Adding Users to a User Group” section in the “User

Group Configuration” chapter.

For more information, go to the “Asso ciating Devices to

an End User” section in the End User Configuration

chapter in the Cisco Unified Communications Manager Administration Guide.

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Overview of Configuring and Installing Cisco Unified IP Phones

Installing Cisco Unified IP Phones

After you have added the phones to th e Cisco Unified Communications Manager database, you can complete the phone installation. You (or the phone users) can install the phone at the users’s location. The Cisco directions for connecting the phone handset, cables, and other accessories.

Note Before you install a phone, even if it is new, upgrade the phone to the current firmware image. For

information about upgrading, refer to the Readme file for your phone, which is located at:

http://tools.cisco.com/support/downloads/go/Redirect.x?mdfid=278875240

After the phone is connected to the network, the phone startup process begins, and the phone registers with Cisco Unified Communications Manager. To finish installing the phone, configure the network settings on the phone depending on whether you enable or disable DHCP service.

If you used auto-registration, you need to update the specific configuration information for the phone such as associating the phone with a user, changing the button table, or directory number.

Unified IP Phone Installation Guide, which is provided on the cisco.com web site, provides

Chapter 1 An Overview of the Cisco Unified IP Phone

Checklist for Installing the Cisco Unified IP Phone 8961, 9951, and 9971

Table 1-10 provides an overview and checklist of installation tasks for the Cisco Unified IP Phone 8961,

9951, and 9971. The list presents a suggested order to guide you through the phone installation. Some tasks are optional, depending on your system and user needs. For detailed procedures and information, refer to the sources in the list.

Table 1-10 Installation Checklist for the Cisco Unified IP Phone 8961, 9951, and 9971

Task Purpose For More Information

1. Choose the power source for the phone:

• Power over Ethernet (PoE)

• External power supply

Determines how the phone receives power.

Note The Cisco Unified IP Phone 9971, when being used in a

WLAN environment, requires an external power supply.

2. Assemble the phone, adjust phone placement, and connect the

network cable. (If you are using the Cisco Unified IP Phone 9971 in a WLAN environment, refer to Task 5.)

Locates and installs the phone in the network.

3. Monitor the phone startup process.

Adds primary and secondary directory numbers and features associated with directory numbers to the phone.

See the “Providing Power to the Cisco

Unified IP Phone” section on page 2-3.

See the “Installing the Cisco Unified IP

Phone” section on page 3-11.

See the “Connecting the Footstand” section

on page 3-19.

See the “Verifying the Phone Startup

Process” section on page 3-21.

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Verifies that phone is configured properly.

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Overview of Configuring and Installing Cisco Unified IP Phones

Table 1-10 Installation Checklist for the Cisco Unified IP Phone 8961, 9951, and 9971 (continued)

Task Purpose For More Information

4. If you choose to deploy the Cisco Unified IP Phone 9971 on a

wireless network, skip to Task 5.

See the “Configuring Startup Network

Settings” section on page 3-21.

If you are configuring the ethernet network settings on the phone for an IP network, you can set up an IP address for the phone by either using DHCP or manually entering an IP address.

Using DHCP—To enable DHCP and allow the DHCP server to automatically assign an IP address to the Cisco Unified IP Phone and direct the phone to a TFTP server, press Applications and choose Administrator Settings > Network Setup > Ethernet Setup > IPv4 Setup and:

• To enable DHCP, set DHCP Enabled to Yes. DHCP is enabled

by default.

• To use an alternate TFTP server, set Alternate TFTP Server to

Yes, and enter the IP address for the TFTP Server.

Note Consult with the network administrator to determine

whether you need to assign an alternative TFTP server instead of using the TFTP server assigned by DHCP.

Without DHCP—You must configure the IP address, subnet mask, TFTP server, and default router locally on the phone. Press

Applications and choose > Administrator Settings > Network Setup > Ethernet Setup > IPv4 Setup:

To disable DHCP and manually set an IP address:

a. Set DHCP Enabled to No.

See the “Ethernet Setup Menu” section on

page 7-4.

b. Enter the static IP address for phone. c. Enter the subnet mask. d. Enter the default router IP addresses. e. Set Alternate TFTP Server to Yes, and enter the IP address for

TFTP Server 1.

You must also enter the domain name where the phone resides. Press Applications and choose Administrator Settings > Network Setup> Ethernet Setup.

5. (Cisco Unified IP Phone 9971 only)

If you choose to deploy the phone on the wireless network, you must configure the following:

• Configure the wireless network.

• Enable wireless LAN for phones on Cisco Unified

Communications Administration.

• Configure a wireless network profile on the phone. Note The wireless LAN on the phone does not activate when

there are ethernet cables connected on the phone.

See Chapter 6, “Understanding the VoIP

Wireless Network.”

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Chapter 1 An Overview of the Cisco Unified IP Phone

Terminology Information

Table 1-10 Installation Checklist for the Cisco Unified IP Phone 8961, 9951, and 9971 (continued)

Task Purpose For More Information

6. Make calls with the Cisco Unified IP Phone.

Verifies that the phone and features work correctly.

7. Provide information to end users about how to us e their phones and

how to configure their phone options. Ensures that users have adequate information to successfully use

their Cisco Unified IP Phones.

Refer to the Cisco Unified IP Phone 8961, 9951, and 9971 User Guide for Cisco Unified Communications Manager.

See Appendix A, “Providing Information

to Users Via a Website.”

Terminology Information

Ta ble 1- 1 1 highlights some of the differences in terminolo gy found in the Cisco Unified IP Phone 8961,

9951, and 9971 User Guide and the Cisco Unified IP Phone 8961, 9951, and 9971 Administration Guide and Cisco Unified Communications Administration Guide.

Table 1-11 Terminology Differences

User Guide Administration Guide

Line Status Busy Lamp Field (BLF) Message Indicators Message Waiting Indicator (MWI) or Message Waiting Lamp Programmable Feature Button Programmable Button or Programmable Line Key (PLK) Voicemail System Voice Messaging System

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CHAP T E R

Preparing to Install the Cisco Unified IP Phone on Your Network

Cisco Unified IP Phones enable you to communicate by using voice over a data network. To provide this capability, the IP Phones depend upon and interact with several other key Cisco Unifie d IP Telephony components, including Cisco Unified Communications Manager.

This chapter focuses on the interactions between the Cisco Unified IP Phone 8961, 9951, and 9971 and Cisco Unified Communications Manager, DNS and DHCP servers, TFTP servers, and switches. It also describes options for powering phon es.

For related information about voice and IP communications, refer to this URL:

http://www.cisco.com/en/US/products/sw/voicesw/index.html

This chapter provides an overview of the interaction between the Cisco Unified IP Phone and other key components of the Voice over IP (VoIP) network. It includes the following topics:

• Understanding Interactions with Other Cisco Unified IP Telephony Products, page 2-1

• Providing Power to the Cisco Unified IP Phone, page 2-3

• Understanding Phone Configuration Fi les, page 2-6

• Understanding the Phone Startup Process, page 2-7

• Adding Phones to the Cisco Unified Communications Manager Database, page 2-9

• Determining the MAC Address for a Cisco Unified IP Phone, page 2-13

Understanding Interactions with Other Cisco Unified IP Telephony Products

T o function in the IP telephony network, the Cisco Unified IP Phone must be connected to a networking device, such as a Cisco Catalyst switch. You must also register the Cisco Unified IP Phone with a Cisco Unified Communications Manager system before sending and receiving calls.

This section includes the following topics:

• Understanding How the Cisco Unified IP Phone Interacts with Cisco Unified Communications

Manager, page 2-2

• Understanding How the Cisco Unified IP Phone Interacts with the VLAN, page 2-2

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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network

Understanding Interactions with Other Cisco Unified IP Telephony Products

Understanding How the Cisco Unified IP Phone Interacts with Cisco Unified Communications Manager

Cisco Unified Communications M anager is a n open and industry-standard call processing system. Cisco Unified Communications M anager soft ware sets up and tears do wn calls b etween ph ones, integrating traditional PBX functionality wit h the corporate IP network. Cisco Unified Communications Manager manages the components of the IP telephony system, such as the phones, the access gateways, and the resources necessary for features such as call conferencing and route planni ng. Cisco U nified Communications Manager also provides:

• Firmware for phones

• Configuration file, CTL, and Identity Trust List (ITL) files via the TFTP service

• Phone registration

• Call preservation, so that a media session continues if signaling is lost between the primary

Communications Manager and a phone

For information about configuring Cisco Unified Communications Manager to work with the IP devices described in this chapter, go to the Cisco Unified IP Phone Configuration chapter in the Cisco Communications Manager Administration Guide.

For an overview of security functionality for the Cisco Unified IP Phone, see the “Understanding

Security Features for Cisco Unified IP Phones” section on page 1-15.

Note If the Cisco Unified IP Phone model that you want to configure does not appear in the Phone Type

drop-down list in Cisco Unified Communicati ons Manager Administration, go to th e following URL and install the latest support patch for your version of Cisco Unified

http://www.cisco.com/kobayashi/sw-center/sw-voice.shtml

Understanding How the Cisco Unified IP Phone Interacts with the VLAN

The Cisco Unified IP Phone 8961, 9951, and 9971 have an internal Ethernet switch, enabling forwarding of packets to the phone, and to the Computer (access) port and the Network port on the back of the phone.

If a computer is connected to the Computer (access) port, the computer and the phone share the same physical link to the switch and share the same port on the switch. This shared physical link has the following implications for the VLAN configuration on the network:

• The current VLANs might be configured on an IP subnet basis. However, additional IP addresses

might not be available to assign the phone to the same subnet as other devices connected to the same port.

• Data traffic present on the VLAN supporting phones might reduce the quality of Voice-over-IP

traffic.

• Network security may indicate a need to isolate the VLAN voice traffic from the VLAN data traf fic.

You can resolve these issues by isolating the voice traffic onto a separate VLAN. The switch port that the phone is connected to would be configured to have separate VLANs for carrying:

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Providing Power to the Cisco Unified IP Phone

• Voice traffic to and from the IP phone (auxiliary VLAN on the Cisco Catalyst 6000 series, for

example)

• Data traffic to and from the PC connected to the switch through the Computer (access) Port of the

IP phone (native VLAN)

Isolating the phones on a separate, auxiliary VLAN increases the quality of the voice traffic and allows a large number of phones to be added to an existing network where there are not enough IP addresses for each phone.

For more information, refer to the documentation included with a Cisco switch. You can also access switch information at this URL:

http://cisco.com/en/US/products/hw/switches/index.html

Related Topics

• Understanding the Phone Startup Process, page 2-7

• Ethernet Setup Menu, page 7-4

Providing Power to the Cisco Unified IP Phone

The Cisco Unified IP Phone 8961, 9951, and 9971 can be powered with external power or with Power over Ethernet (PoE). External power is provided through a separate power supply. PoE is provided by a switch through the Ethernet cable attached to a phone.

Note When you install a phone that is powered with external power, connect the power supply to the phone

and to a power outlet before you connect the Ethernet cable to the phone. When you remove a phone that is powered with external power, disco nnect the Ethernet cable from the phone before you disconnect the power supply.

The following sections provide more information about powering a phone:

• Power Guidelines, page 2-4

• Power Outage, page 2-4

• Reducing Power Consumption on the Phone, page 2-4

• Power Negotiation over LLDP, page 2-5

• Obtaining Additional Information About Power, page 2-5

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Providing Power to the Cisco Unified IP Phone

Power Guidelines

Table 2-1 provides guidelines for powering the Cisco Unified IP Phone 8961, 9951, and 9971.

Table 2-1 Guidelines for Powering the Cisco Unified IP Phone 8961, 9951, and 9971

Power Type Guidelines

External power—Provided through the CP-PWR-CUBE-4= external power supply.

External power—Provided through the Cisco Unified IP Phone Power Injector.

PoE power—Provided by a switch through the Ethernet cable attached to the phone.

The Cisco Unified IP Phone 8961, 9951, and 9971 use the CP-PWR-CUBE-4 power supply.

Note You must use the CP-PWR-CUBE-4 when you deploy the Cisco Unified IP phone

9971 on a wireless Network.

The Cisco Unified IP Phone Power Injector may be used with any Cisco Unified IP Phone. Functioning as a midspan device, the injector delivers inline power to the attached phone. The Cisco Unified IP Phone Power Injector is connected between a switch port and the IP Phone, and supports a maximum cable length of 100m between the unpower ed switch and the IP Phone.

• Cisco Unified IP Phone 8961, 9951, and 9971 support IEEE 802.3af Class 3 power on

signal pairs and spare pairs.

• Cisco Unified IP Phone 8961, 9951, and 9971 support IEEE 802.3at for external

add-on devices.

• To ensure uninterruptible operation of the phone, make sure that the switch has a

backup power supply.

• Make sure that the CatOS or IOS version running on your switch supports your

intended phone deployment. Refer to the documentati on for your switch for operating system version information.

External power—Provided through inline power patch panel WS-PWR-PANEL

The inline power patch panel WS-PWR-PANEL is compatible with the Cisco Unified IP Phone 8961, 9951, and 9971.

Power Outage

Your accessibility to emergency service through the phone is dependent on the phone being powered. If there is an interruption in the power supply, Service and Emergency Calling Service dialing will not function until power is restored. In the case of a power failure or disruption, you may need to reset or reconfigure equipment before using the Service or Emergency Calling Service dialing.

Reducing Power Consumption on the Phone

You can reduce the amount of energy that the Cisco Unified IP Phone consumes by scheduling when the phone goes into power save mode. In power save m ode, the backlight on the screen is not lit when the phone is not in use. The phone remains in power save mode for the scheduled duration or until the user lifts the handset or presses any button. In the Phone Configuration page on Cisco Unified Communications Administration, configure the following parameters.

• Days Display Not Active—Specify the days that the backlight remains inactive.

• Display on Time—Schedule the time of day that the backlight automatically activates. on the days

listed in the off schedule.

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• Display on Duration—Indicates the length of time that the backlight is active once the backlight is

enabled by the programmed schedule

• Display Idle Timeout—Defines the period of user inactivity on the phone before the backlight is

turned off.

Power Negotiation over LLDP

The phone and the switch negotiate the power that the ph one can consume. Cisco Unified IP Phone 8961, 9951, 9971 operate at multiple power settings, which lowers their consumption when less power is available.

After a phone reboots, the switch l ocks to one protoco l (CDP or LLDP) fo r powe r ne gotiat ion. It locks to the first protocol (containing a power Threshold Limit Value (TLV)) that the phone transmits. If the system administrator disables that protocol on the phone, it cannot power up any accessori es because the switch does not respond to power requests in the other protocol.

Cisco recommends that Power Negotiation always be en abled (default) when connecting to a switch that supports power negotiation.

If disabled, the switch may disconnect power to the phone. If the switch does not support power negotiation, then disable the Power Negotiation feature before you power up accessories over PoE. When the Power Negotiation feature is disabled, the phone can power the accessories up to 12.9W.

Providing Power to the Cisco Unified IP Phone

Note When CDP and Power Negotiation are disabled, the phone can power the accessories up to 15.4W.

To enable or disable power negotiation, see Table 8-1 , “ Telephony Features for the Cisco Unified IP

Phone”.

Obtaining Additional Information About Power

For related information about power, refer to the documents shown in Tab le 2-2. These documents provide information about the following topics:

• Cisco switches that work with Cisco Unified IP Phones

• The Cisco IOS releases that support bidirectional power negotiation

• Other requirements and restrictions regarding power

Table 2-2 Related Documentation for Power

Document Topics URL

Cisco Unified IP Phone Power Injector

PoE Solutions http://www.cisco.com/en/US/netsol/ns340/ns394/ns147/ns412/net

Cisco Catalyst Switches http://cisco.com/en/US/products/hw/switches/index.html Integrated Service Routers http://www.cisco.com/en/US/products/hw/routers/index.html Cisco IOS Software http://www.cisco.com/en/US/products/sw/iosswrel/products_ios_

http://www.cisco.com/en/US/products/ps6951/index.html

working_solutions_package.html

cisco_ios_software_category_home.html

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Understanding Phone Configuration Files

Configuration files for a phone are stored on the TFTP server and define parameters for connecting to Cisco Unified Communicati ons Mana ger. In general, any time you make a change in Cisco Unified Communications Manager that requires the phone to be reset, a change is automatically made to the phone’s configuration file.

Configuration files also contain information about which i mage load the phone should be running. If this image load differs from the one currently loaded on a phone, the phone contacts the TFTP server to request the required load files.

A phone accesses a default configuration file named XmlDefault.cnf.xml from the TFTP server when the following conditions exist:

• You have enabled auto-registration in Cisco Unified Communications Manager

• The phone has not been added to the Cisco Unified Communications Manager database

• The phone is registering for the first time

Note If the device security mode in the configuration file is set to Authenticated or Encrypted, but the phone

has not received a CTL or ITL file, the phone trie s four times to obtain the file so it can register securely.

If auto registration is not enabled and the phone has not been added to the Cisco Unified Communications Manager database, the phone registration request will be rejected and display a blank screen.

If the phone has registered before, the phone will access the configuration file named SEPmac_address.cnf.xml, where mac_address is the MAC address of the phone.

The filenames are derived from the MAC address and description fiel ds in the Phon e Config uration window of Cisco Unified Communications Manager Administration. The MAC address uniquely identifies the phone.

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Understanding the Phone Startup Process

When connecting to the VoIP network, the Cisco Unified IP Phone 8961, 9951, and 9971 go through a standard startup process that is described in configuration, not all of these steps may occur on your Cisco Unified IP Phone.

Table 2-3 Cisco Unified IP Phone Startup Process

Task Purpose Related Topics

1. Obtain power from the switch.

If a phone is not using external power, th e switch provides in-line power through the Ethernet cable attached to the phone.

2. (For a Cisco Unified IP Phone 9971 in a wireless LAN only) Scanning

for an access point. The Cisco Unified IP Phone scans the RF coverage area with its radio.

The phone searches its network profiles and scans for access points that have a matching SSID and authentication type. The phone associates with the access point with the highest RSSI that matches with its network profile.

3. (For a Cisco Unified IP Phone 9971 in a wireless LAN only)

Authenticating with the access point. The Cisco Unified IP Phone begins the authentication process:

• If set for Open, then any device can authenticate to the access

point. For added security, static WEP encryption might optionally be used.

Table 2-3. Depending on your specific network

• Ad ding Phones to the C isco

Unified Communications Manager Database, page 2-9.

• Resolving Startup Problems,

page 12-1.

• Interacting with Cisco Unified

Wireless APs, page 6-8.

• Authentication Methods,

page 6-11.

• If set to Shared Key, the phone encrypts the challenge text using

the WEP key and the access point must verify that the WEP key was used to encrypt the challenge text before network access is available.

• If set for LEAP or EAP-FAST, then the user name and password

are authenticated by the RADIUS server before network access is available. For more information about the name and password authentication, see “WLAN Setup Menu” section on page 7-7.

• If set for Auto (AKM), the phone looks for an access point with

one of the following key management options enabled:

–

WPA, WPA2, or CCKM—The username and password are authenticated by the RADIUS server before network access is available.

–

WPA-Pre-shared key, WPA2-Pre-shared key—The phone authenticates with the access point using the pre-shared key.

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Understanding the Phone Startup Process

Table 2-3 Cisco Unified IP Phone Startup Process (continued)

Task Purpose Related Topics

4. Load the stored phone image.

The Cisco Unified IP Phone has non-volatile Flash memory in which it stores firmware images and user-defined preferences. At startup, the phone runs a bootstrap loader that loads a phone image stored in Flash memory. Using this image, the phone initializes its software and hardware.

5. Configure the VLAN.

If the Cisco Unified IP Phone is connected to a Cisco Catalyst switch, the switch next informs the phone of the voice VLAN defined on the switch. The phone needs to know its VLAN membership before it can proceed with the Dynamic Host Configuration Protocol (DHCP) request for an IP address.

6. Obtain an IP address.

If the Cisco Unified IP Phone is using DHCP to obtain an IP address, the phone queries the DHCP server to obtain one. If you are no t using DHCP in your network, you must assign static IP addresses to each phone locally.

7. Requesting the CTL file.

The TFTP server stores the CTL file. This file contains the certificates necessary for establishing a secure connection between the phone and Cisco Unified CM.

8. Requesting the ITL file.

The phone requests the ITL file after it requests the CTL file. The ITL file contains the certificates of the entities that the phone can trust. The certificates are used for authenticating a secure connection with the servers or authenticating a digital signature signed by the servers. The ITL file is supported on the Cisco Unified CM 8.5 and later.

9. Access a TFTP server.

• Resolving Startup Problems,

page 12-1.

• Ethernet Setup Menu, page 7-4.

• Resolving Startup Problems,

page 12-1.

• Ethernet Setup Menu, page 7-4.

• Resolving Startup Problems,

page 12-1.

Refer to Cisco Unified

Communications Manager Security Guide, Configuring the Cisco CTL

Client. See the “Preparing to Install the Cisco

Unified IP Phone on Your Network”

chapter. See the “Troubleshooting and

Maintenance” chapter.

• Ethernet Setup Menu, page 7-4.

2-8

In addition to assigning an IP address, the DHCP server directs the Cisco Unified IP Phone to a TFTP Server. If the phone has a statically

• Resolving Startup Problems,

page 12-1.

defined IP address, you must configure the TFTP server locally on the phone; the phone then contacts the TFTP server directly.

Note You can also assign an alternative TFTP server to use instead of

the one assigned by DHCP.

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Adding Phones to the Cisco Unified Communications Manager Database

Table 2-3 Cisco Unified IP Phone Startup Process (continued)

Task Purpose Related Topics

10. Request the configuration file.

The TFTP server has configuration files, which define parameters for connecting to Cisco Unified Communications Manager and other information for the phone.

11. Contact Cisco Unified CM

The configuration file defines how the Cisco U nified IP Phone communicates with Cisco Unified CM and provides a phone with its load ID. After obtaining the file from the TFTP server, the phone attempts to make a connection to the highest priority Cisco Unified CM on the list.

If the security profile of the phone is configured for secure signaling (encrypted or authenticated), and the Cisco Unified CM is set to secure mode, the phone makes a TLS connection. Otherwise, it makes a nonsecure TCP connection.

• Ad ding Phones to the C isco

Unified Communications Manager Database, page 2-9.

• Resolving Startup Problems,

page 12-1.

See the “Preparing to Install the Cisco

Unified IP Phone on Your Network”

chapter. See the “Troubleshooting and

Maintenance” chapter.

If the phone was manually added to the database, Cisco Unified Communications Manager identifies the phone. If the phone was not manually added to the database and auto-registr ation is enabled in Cisco Unified Communications Manager, the phone attempts to auto-register itself in the Cisco Unified Communications Manager database.

Note Autoregistration is disabled when you configure the CTL client.

In this case, the phone must be manually added to the Cisco Unified CM database.

Adding Phones to the Cisco Unified Communications Manager Database

Before installing the Cisco Unified IP phone, you must choose a method for adding phones to the Cisco Unified Communication s Manage r database. These sections describe the methods:

• Adding Phones with Auto-Registration, page 2-10

• Adding Phones with Auto-Registration and TAPS, page 2-11

• Adding Phones with Cisco Unified Communications Manager Administration, page 2-12

• Adding Phones Using BAT Phone Template, page 2-12

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Table 2-4 provides an overview of these methods for adding phones to the Cisco Unified

Communications Manager database.

Table 2-4 Methods for Adding Phones to the Cisco Unified Communications Manager

Database

Requires MAC

Method

Address? Notes

Auto-registration No Results in automatic assignment of directory numbers Auto-registration with

No Requires auto-registration and the Bulk Administration

TAPS

Using the Cisco Unified

Yes Requires phones to be added individually Communications Manager Administration

Using BAT Y es Allows for simultaneous registration of multiple phones

Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network

Tool (BAT); updates information in the Cisco Unified IP Phone and in Cisco Unified Communications Manager Administration

Adding Phones with Auto-Registration

By enabling auto-registration before you begin installing phones, you can:

• Add phones without first gathering MAC addresses from the phones.

• Automatically add a Cisco Unified IP Phone to the Cisco Unified Communications Manager

database when you physically connect the phone to your IP telephony network. During auto-registration, Cisco directory number to the phone.

• Quickly enter phones into the Cisco Unified Communications Manager database and modify any

settings, such as the directory numbers, from Cisco

• Move auto-registered phones to new locations and assign them to different device pools without

affecting their directory numbers.

Note Cisco recommends you use auto-registration to add less than 100 phones to your network. To add more

than 100 phones to your network, use the Bulk Administration Tool (BAT). See the

Using BAT Phone Template” section on page 2-12.

Auto-registration is disabled by default. In some cases, you might not want to use auto-registration; for example, if you want to assign a specific directory number to the ph one, or use a secure connecti on with Cisco Unified CM as described in Cisco Unified CM Security Guide. For information about enabling auto-registration, go to the “Enabling Aut o-Regist ratio n ” section in the Cisco Unified Communications Manager Administration Guide.

Unified Communications Manager assigns the next available sequential

Unified Communications Manager.

“Adding Phones

2-10

Related Topics

• Adding Phones with Auto-Registration and TAPS, page 2-11

• Adding Phones with Cisco Unified Communications Manager Administration, page 2-12

• Adding Phones Using BAT Phone Template, page 2-12

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Adding Phones to the Cisco Unified Communications Manager Database

Adding Phones with Auto-Registration and TAPS

You can add phones with auto-registration and TAPS, the Tool for Auto-Registered Phones Support, without first gathering MAC addresses from phones.

TAPS works with the Bulk Administration Tool (BAT) to update a batch of phones that were already added to the Cisco Unified Communications Manager database with dummy MAC addresses. Use TAPS to update MAC addresses and download pre-defined configurations for phones.

Note Cisco recommends you use auto-registration and TAPS to add less than 100 phones to your network. T o

add more than 100 phones to your network, use the Bulk Administration Tool (BAT). See the

Phones Using BAT Phone Template” section on page 2-12.

T o implement TAPS, you or the end-user dial a T APS directory number and follow voice prompts. When the process is complete, the phone will have downloaded its directory number and other settings, and the phone will be updated in Cisco Unified Communications Manager Administration with the correct MAC address.

Auto-registration must be enabled in Cisco Unified Communications Manager Administration (System > Cisco Unified CM) for TAPS to function.

“Adding

Note When you configure the cluster for mixed mode through the Cisco CTL client, auto-registration is

automatically disabled. When you configure the cluster for non-secure mode through the Cisco CTL client, auto-registration is not enabled automatically.

For more information, refer to the Cisco Unified Communications Manager Bulk Administration Guide.

Related Topics

• Adding Phones with Auto-Registration, page 2-10

• Adding Phones with Cisco Unified Communications Manager Administration, page 2-12

• Adding Phones Using BAT Phone Template, page 2-12

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Adding Phones to the Cisco Unified Communications Manager Database

Adding Phones with Cisco Unified Communications Manager Administration

You can add phones individually to the Cisco Unified Communications Manager database by using Cisco Unified Communications Manager Administration. To do so, you first need to obtain the MAC address for each phone.

For information about determining a MAC address, see the “Determining the MAC Address for a Cisco

Unified IP Phone” section on page 2-13.

After you have collected MAC addresses, in Cisco Unified Communications Manager Administration, choose Device > Phone and click Add New to begin.

For complete instructions and conceptual information about Cisco Unified Communications Manager, go to the “Cisco Unified Communications Manager Overview” chapter in the Cisco Unified Communications Manager System Guide.

Related Topics

• Adding Phones with Auto-Registration, page 2-10

• Adding Phones with Auto-Registration and TAPS, page 2-11

• Adding Phones Using BAT Phone Template, page 2-12

Adding Phones Using BAT Phone Template

The Cisco Unified Communications Bulk Administration Tool (BAT) enables you to perform batch operations including registration on multiple phones.

To add phones using BAT only (not in conjunction with TAPS), you must obtain the appropriate MAC address for each phone.

For information about determining a MAC address, see the “Determining the MAC Address for a Cisco

Unified IP Phone” section on page 2-13.

For detailed instructions about adding phones using Bulk Administration menu, refer to the Cisco Unified Communications Manager Bulk Administration Guide, chapter Inserting Phones.

To add a phone to the Cisco Unified Communications Manager, follow these steps:

Procedure

Step 1 From Cisco Unifi ed Commu nications Manager, choose Bulk Administration > Phones > Phone

Template.

Step 2 Click Add New. Step 3 Choose a Phone Type and click Next. Step 4 Enter the details of phone specific parameters like Device Pool, Phone Button Template, Device Security

Profile and so on.

Step 5 Click Save. Step 6 From Cisco Unifi ed Commu nications Manager, choose Device > Phone > Add New to add a phone

using an existing BAT phone template.

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Determining the MAC Address for a Cisco Unified IP Phone

For more information about using BAT, refer to the Cisco Unified Communications Manager Bulk Administration Guide. For more information about creating of BAT Phone Templates, see the Cisco Unified Communications Manager Bulk Administration Guide, Phone Template.

Related Topics

• Adding Phones with Auto-Registration, page 2-10

• Adding Phones with Auto-Registration and TAPS, page 2-11

• Adding Phones with Cisco Unified Communications Manager Administration, page 2-12

Determining the MAC Address for a Cisco Unified IP Phone

Several procedures described in this manual require you to determine the MAC address of a Cisco Unified IP Phone. Yo u can determine a phone’s MAC address in these ways:

• From the phone, press the Applications button and choose Phone Information and look at the

MAC

Address field.

• Look at the MAC label on the back of the phone.

• Display the web page for the phone and click the Device Information hyperlink.

For information about accessing the web page, see the “Accessing the Web Page for a Phone”

section on page 11-2.

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CHAP T E R

Setting Up the Cisco Unified IP Phone

This chapter includes the following topics, which help you install the Cisco Unified IP Phone on an IP telephony network:

• Before You Begin, page 3-1

• Understanding the Cisco Unified IP Phone Components, page 3-2

• Installing the Cisco Unified IP Phone, page 3-11

• Connecting the Footstand, page 3-19

• Phone Display Viewing Angle, page 3-20

• Verifying the Phone Startup Process, page 3-21

• Configuring Startup Network Settings, page 3-21

• Configuring Security on the Cisco Unified IP Phone, page 3-21

Note Before you install a Cisco Unified IP phone, you must decide how to configure the phone in your

network. Then you can install the phone and verify its functionality. For more information, see

Chapter 2, “Preparing to Install the Cisco Unified IP Phone on Your Network.”

Before You Begin

Before installing the Cisco Unified IP Phone, review the requirements in these sections:

• Network Requirements, page 3-1

• Cisco Unified Communications M anager Co nfiguratio n, page 3-2

Network Requirements

For the Cisco Unified IP Phone to successfully operate as a Cisco Unified IP Phone endpoint in your network, your network must meet the following requirements:

• Working Voice over IP (VoIP) Network:

–

VoIP configured on your Cisco routers and gateways

–

Cisco Unified Communications Manager installed in your network and configured to handle call processing

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Understanding the Cisco Unified IP Phone Components

• IP network that supports DHCP or manual assignment of IP address, gateway, and subnet mask

Note The Cisco Unified IP Phone displays the date and time from Cisco Unified Communications Manager.

• Voice over Wireless LAN (Optional for Cisco Unified IP Phone 9971)

–

Cisco Aironet Access Points (APs) configured to support Voice over WLAN (VoWLAN)

–

Controllers and switches configured to support VoWLAN

–

Security implemented for authenticating wireless voice devices and users

Cisco Unified Communications Manager Configuration

The Cisco Unified IP Phone requires Cisco Unified Communications Manager to handle call processing. Refer to Cisco Unified Communications Manager Administration Guide or to context-sensitive help in the Cisco Unified Communications Manager application to ensure that Cisco Unified Communications Manager is set up properly to manage the phone and to properly route and process calls.

If you plan to use auto-registration, verify that it is enabled and properly configured in Cisco Unified Communications Manager Administration before connecting any Cisco Unified IP Phone to the network. For information about enabling and configuring auto-registration, refer to Cisco Unified Communications Manager Administration Guide. Also, see the “Adding Phones to the Cisco Unified

Communications Manager Database” section on page 2-9.

You must use Cisco Unified Communications Manager Administration to configure and assign telephony features to the Cisco Unified IP Phones. See the “Telephony Features Available for the Cisco

Unified IP Phone” section on page 8-2 for details.

In Cisco Unified Communications Manager Administration, you can add users to the database and associate them with specific phones. In this way, users gain access their Cisco Unified CM User Option page to configure items such as call forwarding, speed dialing, and voice messaging system options. See the “Adding Users to Cisco Unified Communications Manager” section on page 8-33 for details.

Understanding the Cisco Unified IP Phone Components

The Cisco Unified IP Phone includes these components on the phone or as accessories for the phone:

• Network and Computer Ports, page 3-3

• Handset Rest, page 3-3

• Speakerphone, page 3-4

• Accessory Support on the Cisco Unified IP Phone 8961, 9951, and 9971, page 3-4

• USB Port Data Information, page 3-5

• External Speakers and Microphone, page 3-5

• Headsets, page 3-5

• Using External Devices, page 3-11

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Network and Computer Ports

The back of the Cisco Unified IP Phone includes these ports:

• Network port

• Computer port

Each port supports 10/100/1000 Mbps half- or full-duplex (except for full-duplex only for 1000 Mbps) connections to external devices. You can use either Category 3 or 5 cabling for 10-Mbps connections, but you must use Category 5/5e for 100 and 1000 Mbps connections.

Use the SW network port to connect the phone to the network. You must use a straight-through cable on this port. The phone can also obtain inline power from a switch over this connection. See the “Adding

Phones to the Cisco Unified Communications Manager Database” section on page 2-9 for details.

Use the Computer port to connect a network device, such as a computer, to the phone. You must use a straight-through cable on this port.

Handset Rest

Understanding the Cisco Unified IP Phone Components

The wideband-capable handset is designed especially for use with a Cisco Unified IP Phone. It includes a light strip that indicates incoming calls and voice messages waiting.

T o connect a handset to the Cisco Unified IP Phone, plug the cable into the handset and the Handset p ort on the back of the phone.

With a wall-mounted phone, you might n eed to adjust the handset rest to ensure that the recei ver will not slip out of the cradle, as shown in Figure 3-1.

Figure 3-1 Removing the Hookswitch Clip

21 3

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Chapter 3 Setting Up the Cisco Unified IP Phone

Understanding the Cisco Unified IP Phone Components

Remove handset from the cradle and pull the plastic tab from the handset rest.

Rotate the tab 180 degrees.

Hold the tab between two fingers, with the corner notches facing you.

Line up the tab with the slot in the cradle, and press the tab evenly into the slot. An extension

protrudes from the top of the rotated tab. Return the handset to the handset rest.

Speakerphone

By default, the wideband-capable speakerphone is enabled on the Cisco Unified IP Phone. Y ou can disable the speakerphone by using Cisco Unified Communications Manager Administration. T o

do so, choose Device > Phone and locate the phone you want to modify. In the Phone Configuration window for the phone, check the Disable Speakerphone check box.

Accessory Support on the Cisco Unified IP Phone 8961, 9951, and 9971

Ta ble 3- 1 indicates the accessories that the Cisco Unified IP Phones 8961, 9951, and 9971 support; an

“X” indicates support for a particular phone model and a dash (—) indicates non-support:

Table 3-1 Accessory support for the Cisco Unified IP Phone 8961, 9951, and 9971

Accessory Type

8961 9951 9971

Cisco Accessory

Cisco Unified IP Color Key Expansion

Add-on module 1 up to 2 up to 3

Module—See Chapter 4, “Setting Up the Cisco

Unified IP Color Key Expansion Module.”

Cisco Unified Video Camera—See Chapter 5,

Add-on module — X X

“Setting Up the Cisco Unified Video Camera.”

Third-Party Accessories

Headsets—See the “Headsets” section on

page 3-5. This section includes information on

each headset type.

Microphone—See “External Speakers and

Analog X X X

Analog Wideband X X X

Bluetooth — X X

USB(wired or wireless)

External PC — X X

XXX

Microphone” section on page 3-5.

Speakers—See “External Speakers and

External PC — X X

Microphone” section on page 3-5.

Cisco Unified IP Phone

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USB Port Data Information

The Cisco Unified IP Phone supports a maximum of five devices connected to each USB port. Each device connected to the phone is included in the maximum device count. For example, your phone can support five USB devices (such as three Cisco Unified IP Color Key Expansion modules, one hub, and one other standard USB device) on the side port and five additional standard USB devices on the back port (the Cisco Unified IP Phone 8961 does not have a back USB port). (Many third-party USB products count as several USB devices, so refer to documentation that came with a third-party product.)

Note Unpowered hubs are not supported, and powered hubs with more than four ports are not supported.

Note USB headsets connected to the phone through a USB hub are not supported.

The Cisco Unified Video Camera connected to the phone through a USB hub is not supported.

External Speakers and Microphone

Understanding the Cisco Unified IP Phone Components

Headsets

External speakers and microphones are plug-and-play accessories. Y ou can connect an external PC-type microphone and powered speakers (with amplifier) on the Cisco Unified IP Phone 9951 or 9971 using the line in/out jacks. Connecting an external microphone disables the internal microphone and connecting an external speaker will disable the phone’s internal speaker.

Note Using poor quality external audio devices, playing loudspeakers at very loud volumes or placing the

microphone very close to the loudspeaker may result in undesirable echo heard by other parties on your speakerphone calls.

Although Cisco Systems performs internal testing of third -party headsets for use with the Cisco Unified IP Phones, Cisco does not certify or support products from headset or handset vendors.

The phone reduces some background noise that is detected by a headset microphone, but if you want to further reduce the background nois e and impro ve the overall audio quality, use a noise cancelling headset.

Cisco recommends the use of good quality external devices, for example, headsets that are screened against unwanted radio frequency (RF) and audio frequency (AF) signals. Depending on the quality of headsets and their proximity to other devices such as mobile (cell) phones and two-way radios, s ome audio noise or echo may still occur. An audible hum or buzz may be heard by either the remote party or by both the remote party and the Cisco Unified IP Phone user. Humming or buzzing sounds can be caused by a range of outside sources; for example, electric lights, electric motors, or large PC monitors. See Using External Devices, page 3-11, for more information.

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Note In some cases, hum may be reduced or eliminated by using a local power cube or power injector.

These environmental and hardware inconsistencies in the locations where Cisco Unified IP Phones are deployed means that there is not a single headset solution that is optimal for all environments.

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Understanding the Cisco Unified IP Phone Components

Cisco recommends that customers test headsets in their intended environment to det ermine performance before making a purchasing decision and deploying en masse.

Audio Quality Subjective to the User

Beyond the physical, mechanical and technical performance, the audio portion of a headset must sound good to the user and to the party on the far end. Sound quality is subjective and Cisco cannot guarantee the performance of any headsets. However, a variety of headsets from leading headset manufacturers have been reported to perform well with Cisco Unifie d IP Phones. See manufacturer’s sites for details.

Wired Headsets

To connect a wired headset to the Cisc o Unified IP Ph one, plug it into the Headset port on the back of the phone. Press the Headset button on the phone to place and answer calls using the headset.

You can use the wired headset with all of the features on the Cisco Unified IP Phone, including the Volume and Mute buttons. Use these buttons to adjust the ear piece volume and to mute the speech path from the headset microphone.

If the headset is analog, see the “Analog Headsets” section on page 3-7 for the procedure on configuring the wideband codec.

Chapter 3 Setting Up the Cisco Unified IP Phone

USB Headsets

Disabling a Wired Headset

You can disable the headset by using Cisco Unified Communications Manager Administration. If you do so, you also will disable the speakerphone.

To disable the headset from Cisco Unified Communications Manager Administration, choose Device > Phone and locate the phone that you want to modify. In the Phone Configuration window (Product Specific Configuration layout portion), select the Disable Speakerphone and Headset check box.

Wired and wireless USB headsets are also supported. You can connect a USB headset (or the base station for a wireless headset) to either the Back USB port (if your phone has this port) or the Side USB port. (The Cisco Unified IP Phone 9951 and 9971 contain both a back USB port and a side USB port, while the Cisco Unified IP Phone 8961 contains only a side USB port). For more information about wireless headsets, see the “Wireless Headsets” section on page 3-8.

You must enable the applicable USB Port (either the Back USB Port parameter or the Side USB Port parameter) in Cisco Unified Communications Manager Administration (in the Product Specific Configuration layout portion on the window). Also, for the Enable/Disable USB Classes parameter in Cisco Unified Communications Manager Administration, make sure that “Audio Class” is selected.

These parameters can be enabled on either the Phone Configuration window (Device > Phone), the Enterprise Phone Configuration window (System > Enterprise Phone Configuration), or the Common Phone Profile window (Device > Device Settings > Common Phone Profile). Also check the corresponding Override Common Settings parameter in the configuration window.

3-6

For more information about parameters that can be configured in any of these three configuration windows, see the “Configuring Product Specific Configuration Parameters” section on page 8-26.

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Disabling the USB Headset

To disable the USB headset, disable the USB port (or disable the Audio Class parameter) that you enabled in Cisco Unified Communications Manager Administration. Also, you can select another type of headset in the Accessories window on the phone, thus disabling the previously enabled headset.

Analog Headsets

Analog headsets are supported on the Cisco Unified IP Phone 8961, 9951, and 9971. However, the Cisco Unified IP Phone 8961, 9951, and 9971 cannot detect when there is an analog heads et plugged in . For this reason, the analog hea dset will a ppea r by default in the Accessories pa ge on t he ph one screen . (Press the Applications button and select Accessories.)

The main reason for this is to allow users to enable wideband for the analog headset. The phone is unable to detect if the headset supports the wideband codec, but the user can enable wideband on analog headsets by following these steps:

Procedure

Step 1 On the Cisco Unified IP Phone, press the Applications button . Step 2 Select Accessories. Step 3 Highlight the analog headset, then press the Setup softkey.

Understanding the Cisco Unified IP Phone Components

Step 4 Turn wideband on/off for the selected headset by using the on/off toggle.

If the wideband on/off toggle is not enabled, follow the steps below to make sure the user can enable wideband codec on an analog headset:

Procedure

Step 1 In Cisco Unified Communications Manager Administration, go to Device > Phone. Step 2 In the Find and List Phones window, enter the search criteri a for the phone to wh ich you want to add the

analog headset, then click Find.

Step 3 Click on the Device Name you want; the Phone Configuration window displays. Step 4 On the Product Specific Configuration Layout portion of the Phone Configuration window, be sure the

option called Wideband Headset UI Control is enabled (enabled by default).

Step 5 (Optional) Also on the Product Specific Configuration Layout portion of the Phone Configuration

window, you can set the Wideband Headset option (also enabled by default) in that window.

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Wireless Headsets

The Cisco website provides information about wireless headsets that work with y our IP phone. Go to the following URL:

http://www.cisco.com/en/US/partner/prod/voicesw/ucphone_headsets.html

1. Choose IP Communications from the Enter Solution drop-down list box. The Select a Solution

Category drop-down list box displays.

2. Choose IP Phone Headsets to see a list of Technology Development Program partners.

Refer to the wireless headset documentation for information about co nnecting the head set and u sing th e features.

Using Bluetooth Wireless Headsets

The Cisco Unified IP Phone 9951 and 9971 support Bluetooth Class 2 technology when the headsets support Bluetooth. Bluetooth enables low-bandwidth wireless connections within a range of 30 feet (10 meters). The best performance is in the 3- to 6-foot range (1 to 2 meters). You can pair up to 5 headsets, but only the last one connected is used as the default.

There can be a potential interference issues. Cisco recommends that you reduce the proximity of other

802.11b/g devices, Bluetoot h devices, microwave ovens, and large metal objects. If possible, configure other 802.11 devices to use the 802.11a channels.

Chapter 3 Setting Up the Cisco Unified IP Phone

Handsfree Profile

For a Bluetooth wireless headset to work, it does not need to be wit hin direct line-o f-sig ht of the phon e, but some barriers, such as walls or doors, and interference from other electronic devices, could affect the connection.

Your phone supports various Handsfree Profile features that enable you to use handsfree devices (such as Bluetooth wireless headsets) to perform certain tasks without having to handle the phone. For example, instead of pressing Redial on the phone, users can redial a number from their Bluetooth wireless headset according to instructions from the headset manufacturer.

These handsfree features apply to Bluetooth wireless headsets used with the Cisco Unified IP Phone 9951 and 9971:

• Answer a call

• End a call

• Change the headset volume for a call

• Redial

• Caller ID

• Reject

• Divert

• Hold and Accept

3-8

• Release and Accept

Handsfree devices may differ in how features are activated. Device manufacturers may also use different terms when referring to the same feature.

For more information, see the manufacturer’s documentation.

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Adding a Bluetooth Wireless Headset to the Phone

The Cisco Unified IP Phones 9951 and 9971 support Bluetooth wireless headsets. You can enable your bluetooth wireless headset by following these steps:

Procedure

Step 1 In Cisco Unified Communications Manager administration, choose Device > Phone, locate the phone

you want to modify, and go to the Phone Configuration window for that phone.

Step 2 In the Phone Configuration window, select Enable for the Bluetooth setting and Handsfree for the

Bluetooth Profiles settings.

Step 3 Save your changes.

After the bluetooth wireless headset is enabled through Cisco Unified Communications Man ager Administration, you must add the headset as an accessory to the phone by using following these steps:

Procedure

Understanding the Cisco Unified IP Phone Components

Step 1 On the Cisco Unified IP Phones 9951 or 9971, press the Applications button and select

Accessories.

Step 2 Select Add Bluetooth Accessory.

The Adding Bluetooth Accessory window appears. A message tells you to make sure your accessory is “discoverable,” which means that the Bluetooth should be powered on and in “discoverable” or “pairing” mode.

Once the Bluetooth device is located, its name will appear in the window, and a message appears that asks for a PIN so that the Bluetooth device can be paired with the Cisco Unified IP Phone.

Step 3 The Cisco Unified IP Phone automatically tries to pair with the headset by using a PIN of “0000.” If t he

headset uses a different PIN, enter the correct PIN by referring to the user guide that came with the headset.

Note It is recommended that users read the headset user guide for more information about pairing and

connecting the headsets.

Once the phone has the correct pin, the phone will try to connect to the accessory. The phone will provide feedback to the user while it is trying to connect the accessory. If unable to co nnect, an error alert will be shown to let the user know the reason for the failure. There will be a timeout of 10 seconds for the phone to try to connect the accessory. If the timer expires without a successful connection, an error alert will be displayed.

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The Cisco Unified IP Phone connects with headsets using a shared key authentication and encryption method. The Cisco Unified IP Phone can be connected with up to five headsets at a time. The last one connected is used as the default. Pairing is typically performed once for each headset.

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Understanding the Cisco Unified IP Phone Components

Once a device has been paired, its Bluetooth connection is maintained as long as both devices (phone and headset) are enabled and within range of each other. The connection typically re-establishes itself automatically if either of the devices powers down then powers up. However , some head sets require user action to re-establish the connection.

The Bluetooth icon indicates whether or not a device is connected. When headsets are more than 30 feet (10 met ers) away from the Cisco Unified IP Phone, Bluetooth drops

the connection after a 15- to 20-second timeout. If the paired headset comes back into range of the Cisco Unified IP Phone and the phone is not connected to another Bluetooth headset, the in-range Bluetooth headset automatically reconnects. For certain phone types that operate in power-save modes, the user may have to “wake-up” the headset by tapping on its operational button to initiate the reconnect.

Removing a Bluetooth Device From the Phone

To remove a Bluetooth device from the Cisco Unified IP Phone 9951 or 9971, follow these steps:

Procedure

Step 1 Press the Applications button . Step 2 Select Accessories. Step 3 Highlight the device you want to remove and press the Delete softkey.

Chapter 3 Setting Up the Cisco Unified IP Phone

Related Documentation About Bluetooth Wireless Headsets

For information about how to use your Bluetooth wireless headset, see:

• Cisco Unified IP Phone 8961, 9951, and 9971 User Guide for Cisco Unified Communications

Manager

• User guides that were provided with your headset

Important Note about Headset Types

Only one headset type will work at any given time, so if yo u have both a Bluetooth headset an d an analog headset attached to the phone, enabling the Bluetooth headset disables the analog headset. T o enable the analog headset, disable the Bluetooth headset. Plugging a USB headset into a phone that has Bluetooth headset enabled disables both the Bluetooth and analog headset. If yo u unplug the USB headset , then you can either enable the Bluetooth headset or disable the Bl uetooth headset to use the ana log headse t.

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Chapter 3 Setting Up the Cisco Unified IP Phone

Using External Devices

Cisco recommends the use of good quality external devices (such as speakers, microphones, and headsets) that are shielded (screened) against unwanted radio frequency (RF) and audio frequency (AF) signals.

Depending on the quality of these devices and their proximity to other devices such as mob ile phones or two-way radios, some audio noise may still occur. In these cases, Cisco recommends that you take one or more of the following actions:

• Move the external device away from the source of the RF or AF signals.

• Route the external device cables away from the source of the RF or AF signals.

• Use shielded cables for the external device, or use cables with a better shield and connector.

• Shorten the length of the external device cable.

• Apply ferrites or other such devices on the cables for the external device.

Cisco cannot guarantee the performance of the system because Cisco has no control over the quality of external devices, cables, and connectors. The system will perform adequately when suitable devices are attached using good quality cables and connectors.

Installing the Cisco Unified IP Phone

Caution In European Union countries, use only external headsets that are fully compliant with the EMC Directive

[89/336/EC].

Installing the Cisco Unified IP Phone

You must connect the Cisco Unified IP Phone to the network and to a power source before using it. See

Figure 3-2, Figure 3-4 and Figure 3-6 for graphical representations of the back connections for Cisco

Unified IP Phones 8961, 9951, and 9971, respectively. See Figure 3-3, Figure 3-5, and Figure 3-7 for graphical representations of the side connections for Cisco Unified IP Phones 8961, 9951, and 9971, respectively.

Note Before you install a phone, even if it is new, upgrade the phone to the current firmware image.

Before using external devices, read the “Using External Devices” section on page 3-11 for safety and performance information.

Note Firmware upgrades over the WLAN interface may take longer than upgrading over the wired interface,

depending on the quality and bandwidth of the wireless connection. Some upgrades may take more than hour.

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Chapter 3 Setting Up the Cisco Unified IP Phone

Installing the Cisco Unified IP Phone

To install a Cisco Unified IP Phone, you must perform the task described in Table 3-2.

Table 3-2 Installing the Cisco Unified IP Phone

Task Purpose Related Topics

1. Connect the handset to the handset port. —

2. Connect a headset to the headset port.

Optional. You can add a headset later if you do not connect one now.

3. (Optional) Connect a wireless headset (for the Cisco Unified IP

Phone 9951 and 9971 only). Yo u can add a wirele ss headset later if you do no t want to conne ct

one now.

4. Connect a straight-through Ethernet cable from the switch to the

network port labeled 10/100/1000 SW on the Cisco Unified IP Phone.

Each Cisco Unified IP Phone ships with one Ethernet cable in the box.

See the “Headsets” section on page 3-5 for more information.

Refer to your wireless headset documentation for information.

See the “Network and Computer Ports”

section on page 3-3 for guidelines.

Use either Category 3/5/5e cabling for 10-Mbps connections, use Category 5/5e for 100 Mbps connections, and use Category 5e for 1000Mbps connections.

5. Connect a straight-through Ethernet cable from another network

device, such as a desktop computer, to the Computer port on the Cisco Unified IP Phone.

Optional. Y ou can connect another ne twork device later if you do not connect one now.

You can use either Category 3/5/5e cabling for 10-Mbps connections, use Category 5/5e for 100 Mbps connections, and use Category 5e for 1000Mbps connections.

6. (Optional) Enable the phone to use the wireless local area network

(WLAN).

Note You must disconnect all ethernet connections if you deploy

the Cisco Unified IP Phone 9971 on a wireless LAN.

See the “Network and Computer Ports”

section on page 3-3 for guidelines.

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Chapter 3 Setting Up the Cisco Unified IP Phone

277213

ComputerNetwork

Figure 3-2 Cisco Unified IP Phone 8961 Connections (Back)

Installing the Cisco Unified IP Phone

DC adaptor port (DC48V)

AC-to-DC power supply (optional)

AC power wall plug (optional)

Network port (10/100/1000 SW) with IEEE

802.3af and 802.3at power enabled

Computer port (10/100/1000 PC) connection

Handset Connection

Analog Headset Connection (optional)

Anti-theft security lock connector (lock optional)

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Installing the Cisco Unified IP Phone

Figure 3-3 Cisco Unified IP Phone 8961 Cable Connections (Side)

Chapter 3 Setting Up the Cisco Unified IP Phone

197210

USB port

Accessory connector (such as for the Cisco Unified

IP Color Key Expansion Module)

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Chapter 3 Setting Up the Cisco Unified IP Phone

Figure 3-4 Cisco Unified IP Phone 9951 Cable Connections (Back)

ComputerNetwork

Installing the Cisco Unified IP Phone

DC adaptor port (DC48V)

AC-to-DC power supply (optional)

AC power wall plug (optional)

Network port (10/100/1000 SW) with IEEE 802.3af power enabled

Computer port (10/100/1000 PC) Connection

277214

Handset Connection

Analog Headset Connection (optional)

USB Port

Anti-theft Security lock connector (lock optional)

Camera pin holes (for Cisco Unified Video Camera)

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Installing the Cisco Unified IP Phone

Figure 3-5 Cisco Unified IP Phone 9951 Cable Connections (Side)

Chapter 3 Setting Up the Cisco Unified IP Phone

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Side USB port

Accessory connector (such as for the Cisco

Unified IP Color Key Expansion Module)

General purpose output port (speakers)

General purpose input port (microphone)

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Chapter 3 Setting Up the Cisco Unified IP Phone

Figure 3-6 Cisco Unified IP Phone 9971 Cable Connections (Back)

1011

ComputerNetwork

Installing the Cisco Unified IP Phone

DC adaptor port (DC48V)

AC-to-DC power supply (optional)

AC power wall plug (optional)

Network port (10/100/1000 SW) with IEEE

802.3af and IEEE 802.3at power enabled

Computer port (10/100/1000 PC) Connection

Handset Connection

277215

Analog Headset Connection (optional)

USB Port

Anti-theft Security lock connector (lock optional)

Camera pin holes (for Cisco Unified Video Camera)

SDIO slot (not used for this release)

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Installing the Cisco Unified IP Phone

Figure 3-7 Cisco Unified IP Phone 9971 Cable Connections (Side)

Chapter 3 Setting Up the Cisco Unified IP Phone

197155

Side USB port

Accessory connector (such as for the Cisco

Unified IP Color Key Expansion Module)

Related Topics

• Connecting the Footstand, page 3-19

• Verifying the Phone Startup Process, page 3-21

• Configuring Startup Network Settings, page 3-21

General purpose output port (speakers)

General purpose input port (microphone)

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Chapter 3 Setting Up the Cisco Unified IP Phone

Connecting the Footstand

If your phone is placed on a table or desk, connect the footstand to the back of the phone.

Figure 3-8 illustrates the footstand on the Cisco Unified IP Phone 8961, 9951, and 9971. To attach the

footstand to the phone, align the tabs to the appropriate set of holes on the phone and snap into place.

Figure 3-8 Cisco Unified IP Phone 8961, 9951, and 9971

Connecting the Footstand

Insert the curved connectors into the lower

slots.

193118

Lift the footstand until the connectors snap into the upper slots.

Note Connecting and disconnecting the footstand requires a

little extra force than you might expect.

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Phone Display Viewing Angle

193119

Phone Display Viewing Angle

The phone display viewing angle can be adjusted according to your preference. Hold the handset and cradle with your left hand, hold the right side of the bezel (to the right of the display) with your right hand, then move your hands back and fort h in opposi te direction s to adjust the angle.

Chapter 3 Setting Up the Cisco Unified IP Phone

Securing the Phone with a Cable Lock

You can secure the Cisco Unified IP Phone 8961, 9951, and 9971 to a desktop by using a laptop cable lock. The lock connects to the anti-theft security connector on the back of the phone, and the cable can be secured to a desktop.

The security slot can accommodate a lock up to 20 mm. Compatible laptop cable locks include the Kensington laptop cable lock and laptop cable locks from other manufacturers that can fit into the security slot on the back of the phone.

Mounting the Phone to the Wall

You ca n mount the Cisco U nified IP Phone o n the wal l by using special brackets available in a Cisco Unified IP Phone wall mount kit. (Wall mount kits must be ordered separately from the phone.) For detailed information, see Appendix E, “Installing the Wall Mount for the Cisco Unified IP Phone” or

Appendix F, “Cisco Unified IP Phone Non-Lockable Wall Mount.”

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Chapter 3 Setting Up the Cisco Unified IP Phone

Verifying the Phone Startup Process

After the Cisco Unified IP Phone has power connect ed to it, the p hone begins its startup di agnostic process. by cycling through the following steps.

1. The buttons on the Feature and Session buttons flash amber and then green in sequence during the

various stages of bootup as the phone checks its hardware.

2. The main screen displays a “Registering to Cisco Unified Communications Manager” message.

If the phone successfully passes through these stages, it has started up properly and the Select button stays lit until it is selected. If the phone does not start up pro perly, see the “Resolving Startup Problems”

section on page 12-1.

Configuring Startup Network Settings

If you are not using DHCP in your network, you must configure these network settings on the Cisco Unified IP Phone after installing the phone on the network:

• IP address

Verifying the Phone Startup Process

• IP subnet information

• TFTP server IP address

• You also may configure the domain name and the DNS server settings, if necessary.

Collect this information and see the instructions in Chapter 7, “Configuring Settings on the Cisco

Unified IP Phone.”

Configuring Security on the Cisco Unified IP Phone

The security features protect against several threats, including threats to the identity of the phone and to data. These features establish and maintain authenticated communication streams between the phone and the Cisco Unified Communications Manager ser ver , and ensure that the phone uses only dig itally signed files.

Cisco Unified Communications Manager (beginning with Release 8.5(1)) includes Secu rity by Default, which provides the following security features for Cisco Unified IP phones without running the CTL client:

• Signing of the phone configuration files.

• Phone configuration file encryption.

• https with Tomcat and other Web services.

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Note Secure signaling and media features still require you to run the CTL client and use hardware eTokens.

For more information about the security features, see the “Understanding Security Features for Cisco

Unified IP Phones” section on page 1-15. Also, refer to the Cisco Unified Communications Manager

Security Guide.

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Configuring Security on the Cisco Unified IP Phone

A Locally Significant Certificate (LSC) installs on phones after you perform the necessary tasks that are associated with the Certificate Authority Proxy Function (CAPF). You can use Cisco Unified Communications Manager Administration to configure an LSC, as described in the Cisco Unified Communications Manager Security Guide.

Alternatively, you can initiate the installation of an LSC from the Security Setup menu on the phone. This menu also lets you update or remove an LSC.

Before You Begin

Make sure that the appropriate Cisco Unified Communications Manager and the Certificate Authority Proxy Function (CAPF) security configurations are complete:

• The CTL or ITL file should have a CAPF certificate.

• On Cisco Unified Communications Operating System Administration, verify that the CAPF

certificate has been installed

• The CAPF is running and configured.

Refer to the Cisco Unified Communications Manager Security Guide for more information. To configure an LSC on the phone, perform these steps:

Chapter 3 Setting Up the Cisco Unified IP Phone

Procedure

Step 1 Obtain the CAPF authentication code that was set when the CAPF was configured. Step 2 From the phone, press Applications and choose Administrator Settings > Security Setup.

Note You can c ontrol access to the Settings Menu by using the Settings Acces s field in the Cisco

Unified Communications Manager Administration Phone Configuration window. For more information, see the Cisco Unified Communications Manager Administration Guide.

Step 3 Choose LSC and press the Select button or Update softkey.

The phone prompts for an authentication string.

Step 4 Enter the authentication code and press the Submit softkey.

The phone begins to install, update, or remove the LSC, depending on how the CAPF was configured. During the procedure, a series of messages appears in the LSC option field in the Security Configuration menu, so you can monitor progress. When the procedur e comp letes successfully, the phone will display Installed or Not Installed.

The LSC install, update, or removal process can take a long time to complete. You can stop the process at any time by pressing the Stop softkey from the Security Setup menu.

When the phone successfully completes the installation procedure, it displays “Installed.” If the phone displays, “Not Installed,” the au thorizat ion string may be in correct or t he phone m ay not enab led for upgrading. If the CAPF operation was to delete the LSC, the phone will display “Not Installed” to indicate that the operation was successful. Refer to error messages generated on the CAPF server and take appropriate actions.

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CHAP T E R

Setting Up the Cisco Unified IP Color Key Expansion Module

The Cisco Unified IP Color Key Expansion Module (KEM) attaches to your Cisco Unified IP Phone 8961, Cisco Unified IP Phone 9951, and Cisco Unified IP Phone 99 71 to add additional line appearances, speed dials, or programmable buttons to your phone.

You can add one Key Expansion Module (KEM) to the Cisco Unified IP Phone 8961 to add up to 36 extra lines or buttons, two Expansion Modules to the Cisco Unified Phone 9951 to add up to 72 extra lines or buttons, and three Expansion Modules to the Cisco Unified IP Phone 9971 to add up to 108 extra lines or buttons.

The programmable buttons can be set up as phone line buttons, speed-dial buttons, or phone feature buttons.

Most call functions, such as answering a call, placing a call on hold, and transferring a call, can be performed with the Cisco Unified IP Color Key Expansion Module.

Ta ble 4- 1 lists the Cisco Unified IP Phones and the number of Key Expansion Modules supported by

each model.

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Note For information on installing a wall mount kit for a phone that includes a Cisco Unified IP Color Key

Expansion Module, see the

on page E-8.

Table 4-1 Cisco Unified IP Phones and Supported KEMs

Cisco Unified IP Phone Model KEMs Supported

9971 3 KEMs with 108 lines or buttons 9951 2 KEMs with 72 lines or buttons 8961 1 KEM with 36 lines or buttons

This chapter includes the following topics:

• Installing a Key Expansion Module on the Cisco Unified IP Phone, page 4-2

• Configuring the Key Expansion Module in Cisco Unified Communications Manager

Administration, page 4-4

• Key Expansion Module Settings on the Phone, page 4-5

• Upgrading the Key Expansion Module, page 4-5

Cisco Unified IP Phone 8961, 9951, and 9971 Administration Guide for Cisco Unified Communications Manager 8.5 (SIP)

“Installing a W al l Mount for a Phone with a Key Expans ion Module” section

4-1

Chapter 4 Setting Up the Cisco Unified IP Color Key Expansion Module

Installing a Key Expansion Module on the Cisco Unified IP Phone

• Removing a Key Expansion Module, page 4-6

• Troubleshooting, page 4-6

Installing a Key Expansion Module on the Cisco Unified IP Phone

This section contains the following topics:

• Power Information, page 4-2

• Connecting a Single KEM to the Cisco Unified IP Phone, page 4-2

• Connecting Two or More KEMs to the Phone Using the KEM Spine Connector, page 4-3

Power Information

The Cisco Unified IP Color Key Expansion Module for the Cisco Unified IP Phone 8961, 9951, and 9971 have the following power consumption and power scheme.

Power Consumption

48V DC, 5W per KEM

Power Scheme

• At least one KEM can be po we re d up if the Ci sco Unified IP Phone 8961, 9951, and 9971 uses AT

PoE.

• If the phone uses a power adapter, three KEMs can be powered up for the Cisco Unified

Phone 9971, two KEMs can be powered up for the Cisco Unified IP Phone 9951, and one KEM

can be powered up for the Cisco Unified IP Phone 8961.

• A KEM cannot be powered up if t he Cisco Unified IP Phone 8961, 9951, and 9971 uses AF PoE.

• With AT power, the Cisco Unified IP Phones 9951 and 9971 can support two KEMs plus a USB

headset or another USB device that is independently powered and only uses USB for signaling.

• The Cisco Unified IP Phone 9971 needs a power cube to support three KEMs.

• With AF power, the Cisco Unified IP Phones 9951 and 9971 need power cubes for any KEMS. The

Cisco Unified IP Phone 8961 can support one KEM with CDP, AF power, and no power cube.

Connecting a Single KEM to the Cisco Unified IP Phone

To connect a single KEM to the Cisco Unified IP Phone, follow these steps:

Procedure

4-2

Step 1 Position the phone so that the front of the phone is facing up. Step 2 Connect one end of the KEM spine connector to the Accessory Connector on the Cisco Unified IP Phone. Step 3 Connect the other end of the KEM spine connector to the KEM as shown in Figure 4-1.

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Chapter 4 Setting Up the Cisco Unified IP Color Key Expansion Module

206800

Figure 4-1 Connecting the KEM Spine Connector to the Cisco Unified IP Phone and KEM

Installing a Key Expansion Module on the Cisco Unified IP Phone

Step 4 Fasten the screws on the spine connector after connecting both the ends.

Note You can use a coin or screwdriver to fasten the screws. Make sure tha t the sides of the screw

heads are fully inserted into the spine connector cavity and tightened.

Connecting Two or More KEMs to the Phone Using the KEM Spine Connector

To connect two or more KEMs to th e Cisco Unified IP Phone, follow these steps:

Procedure

Step 1 Position the phone so that the front of the phone is facing up. Step 2 Connect one end of the KEM spine connector to the Accessory Connector on the Cisco Unified IP Phone

and the other end of the spine connector to a KEM, as shown in the ( KEM is now connected to the Cisco Unified IP Phone.

Step 3 Using a second KEM spine connector, connect the second KEM to the first KEM. Step 4 (Optional) Using a third KEM spine connector, connect the third KEM to the second (middle) KEM.

Figure 4-2 shows a Cisco Unified IP Phone with three KEMs attache d.

Step 5 Fasten the screws on the spine connectors after connecting both the ends.

Figure 4-1 on page 4-3). The first

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Chapter 4 Setting Up the Cisco Unified IP Color Key Expansion Module

Configuring the Key Expansion Module in Cisco Unified Communications Manager Administration

Figure 4-2 Cisco Unified IP Phone with Three KEMs Attached

Note Cisco offers two other methods of connecting KEMs to you r phone in case you ei ther have a shortage of

desk space that prevents you from using the spine connectors as shown in access to the speaker and microphone ports (o n the Cisco Unified IP Phone 9951 and 9971) that the KEM spine connector covers up.

197184

Figure 4-2, or in case you need

Configuring the Key Expansion Module in Cisco Unified Communications Manager Administration

T o configure the Cisco Unified IP Colo r Key Expansion Module on the Cisco Unified IP Phone, perform the following:

Procedure

Step 1 In Cisco Unified Communications Manager Administration, choose Device > Phone.

The Find and List Phones page appears. You can search for one or more phones that you want to configure for the Cisco Unified IP Color Key Expansion Module.

Step 2 Select and enter your search criteria and click Find.

The Find and List Phones window appears with a list of phones that match your search criteria.

Step 3 Click the IP Phone that you want to configure for the Cisco Unified IP Color Key Expansio n Module.

The Phone Configuration window appears. Scroll down to the Expansion Module Information section on the right pane of the Phone Configuration

window, and choose the appropriate expansion module (or “none) for the Module 1, Module 2 and Module 3 fields, in this order.

For the Module Load Name, enter the custom software for the appropriate expansion module, if applicable. The value that you enter overrides the default value for the current model. Ensure the firmware load matches the module load. If the Module Load Name is left blank, the default load (the load bundled with the phone load) is installed.

For the number of supported KEMs per phone model, refer to Table 4-1 on page 4-1.

4-4

Step 4 Make sure the Side USB Port parameter is enabled.

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Chapter 4 Setting Up the Cisco Unified IP Color Key Expansion Module

Key Expansion Module Settings on the Phone

Note If the Side USB Port is disabled, the KEM will not work.

Step 5 Be sure to select the phone button template (in the Device Information portion of the Phone

Configuration window) that has been configured to make full use of the KEM(s) attached to the phone.

Step 6 Click Save.

Key Expansion Module Settings on the Phone

Once you have installed one or more KEMs on the phone and have configured them in Cisco Unified Communications Manager Administration, the KEMs are automatically recognized by the Cisco Unified IP Phone 8961, 9951, and 9971.

On the phone, press the Applications button and then press Accessories. All KEMs that have been properly installed and configured should appear in the list of accessories.

When multiple KEMs are attached, they will be numbered according to the order in which they are connected with respect to the phone. For example (refer to Figure 4-2):

• Key Expansion Module 1 is the KEM closest to the phone.

• Key Expansion Module 2 is the KEM in the middle.

• Key Expansion Module 3 is the KEM farthest to the right.

You can se lect a KEM, and then choose one of the following softkeys:

• Exit—Returns to the Applications menu.

• Details—Provides details ab out the se lected KEM .

• Setup—Allows you to configure the brightness of the selected KEM. This can also be done by mean s

of the Preferences menu. For details, refer to the Cisco Unified IP Phone 8961, 99 51, and 9971 User Guide for Cisco Unified Communications Manager, “Accessories” chapter, “Adjust the Brightness

on the Cisco Unified IP Color Key Expansion Module” section.

Upgrading the Key Expansion Module

To automatically upgrade KEMs to the latest load, follow these steps:

Procedure

Step 1 Power on the KEM, press Page 1, and do not release. When the LCD turns white, continue pressing Page

1 for at least one second.

Step 2 Release Page 1; LEDs should turn red. Immediately press Page 2 and continue pressing Page 2 for at

least one second.

Step 3 Release Page 2; all LEDs should turn amber. Step 4 Press Lines 5, 14, 1, 18, 10, and 9 in sequence.

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The LCD should turn blue, and the spinning loader is displayed in the center.

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Chapter 4 Setting Up the Cisco Unified IP Color Key Expansion Module

Removing a Key Expansion Module

The KEM starts to upgrade.

Removing a Key Expansion Module

If you need to remove all existing KEMs from the phone, detach them from the phone, then go to Cisco Unified Communications Manager administration and update the phone configuration file accordingly.

If you are removing one or more KEMs but still leaving one or more KEMs attached to the phone, refer to the “Installing a Key Expansion Module on the Cisco Unified IP Phone” section on page 4-2 for instructions on how the KEMs and phone should be connected based on how many KEMs will remain. Also, go to Cisco Unified Communications Manager Admi nistration and update the phon e configuration file accordingly.

Troubleshooting

To obtain KEM troubleshooting information, follow these steps:

Procedure

Step 1 Open a command line interface. Step 2 Enter the following command to enter debug mode:

debugsh

Step 3 Enter ? to see all available commands and options. Step 4 Use the applicable commands and options to find the KEM information desired.

To exit debug mode, either perform a Ctrl-C.

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CHAP T E R

Setting Up the Cisco Unified Video Camera

The Cisco Unified IP Phone 9951 and 9971 supports t he add-on accessory Cisco U nified Video Camera. The Cisco Unified Video Camera connects to your Cisco Unified IP Phone and allows you to make a

point-to-point video call with another Cisco Unified IP Phone with a Cisco Unified Video Camera attached. If a phone does not have a Cisco Unified Video Camera attached, it can only receive one-way video.

This chapter contains the following information:

• Configuring the Cisco Unified Video Camera, page 5-1

• Attaching the Cisco Unified Video Camera, page 5-2

• Adjusting the Camera Settings, page 5-2

• Post-Installation Steps, page 5-4

• Using the Cisco Unified Video Camera, page 5-4

Configuring the Cisco Unified Video Camera

To configure the Cisco Unified Video Camera, you must perform the following configuration steps in Cisco Unified Communications Manager administration:

Note The parameters described in the following procedure can be enabled on either the Phone Configuration

window (Device > Phone), the Enterprise Phone Configuration window (System > Enterprise Phone Configuration), or the Common Phone Profile window (Device > Device Settings > Common Phone Profile). Be sure to also check the corresponding Override Common Settings parameter in the

configuration window. The Phone Configuration window is referenced below for purposes of the procedure description.

For more information about parameters that can be configured in any of these three configuration windows, see the “Configuring Product Specific Configuration Parameters” section on page 8-26.

Procedure

Step 1 In the phone configuration window (Device > Phone) of the phone to which you are adding the C isco

Unified V ideo Camera, enabl e the Cisco Camera paramet er. This field is located in the Product Specific Configuration layout portion of the window.

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Chapter 5 Setting Up the Cisco Unified Video Camera

Attaching the Cisco Unified Video Camera

Step 2 On the same window, enable the Video Capabilities parameter. Step 3 Click Save.

Attaching the Cisco Unified Video Camera

To install the Cisco Unified Video Camera, you can either:

• Attach the camera to your phone.

• Attach the camera to your computer monitor (or to another object in your work area).

The USB port connector on the bottom of the Cisco Unified Video Camera attaches to the back port (not the side port) on the Cisco Unified IP Phone 9951 or 9971. As yo u attach the USB connector t o the back port on the phone, the camera should slide easily into the camera pin holes on the phone.

Figure 3-4 on page 3-15 shows the location of the back USB port and the camera pin holes for the Cisco

Unified IP Phone 9951. Figure 3-6 on page 3-17 shows the location of the back USB port and the camera pin holes for the Cisco Unified IP Phone 9971.

Installation Procedure

For the complete installation procedure, see the Cisco Unified Video Camera Quick Start Guide at this location:

http://www.cisco.com/en/US/products/ps10655/products_user_guide_list.html

Adjusting the Camera Settings

Once you have attached the camera on your phone, you can control the features of the camera. This section provides information on the features you can control from the phone:

• Adjusting the Camera View Area, page 5-2

• Adjusting the Brightness Setting, page 5-3

• Adjusting Auto Transmit Setting, page 5-3

Adjusting the Camera View Area

The View Area feature acts as a wide angle and zoom functio n for you r camera and allows y ou to ad just the view area that is shared during video streaming. The View Area feature acts as a wide angle and zoom function for your camera.

To adjust the camera view area, follow these steps:

5-2

Procedure

Step 1 On the Cisco Unified IP Phone, press the Applications button . Step 2 Select Accessories. Step 3 Highlight Cisco Unified Camera.

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Chapter 5 Setting Up the Cisco Unified Video Camera

Step 4 Press the Set-up softkey. Step 5 Select View Area. Step 6 Use the arrows on the Navigation pad to increase or decrease the view area. Step 7 Press the Save softkey.

Adjusting the Brightness Setting

The Brightness setting affects the video that yo u transmit to others. Ho wever , it does not af fect the video that you receive from other parties. You can adjust the brightness setting to improve the quality of the video during streaming.

Note As the field of view can affect brightness, adjust the View Area feature for your camera before adjusting

the Brightness setting.

To adjust the Brightness setting, follow these steps:

Adjusting the Camera Settings

Procedure

Step 1 On the Cisco Unified IP Phone, press the Applications button . Step 2 Select Accessories. Step 3 Highlight Cisco Unified Camera. Step 4 Press the Set-up softkey. Step 5 Select Brightness. Step 6 Use the arrows on the Navigation pad to increase or decrease brightness. Step 7 Press the Save softkey.

Adjusting Auto Transmit Setting

The Auto Transmit feature allows you to control the streaming of videos for both inound and outbound calls.

When Auto Transmit is on (default setting), the camera streams video automatically during calls. When Auto Transmit is off, video for each call is automatically muted (however, your phone still

receives video). To resume video transmission in this case, press the Unmute Video softkey . To turn the Auto Transmit setting on or off, follow these steps:

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Procedure

Step 1 On the Cisco Unified IP Phone, press the Applications button . Step 2 Select Accessories.

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Post-Installation Steps

Step 3 Highlight Cisco Unified Camera. Step 4 Press the Set-up softkey. Step 5 Press the Tur n On or Turn Off softkey.

Post-Installation Steps

After installing the Cisco Unified Video Camera, perform the following checks:

1. Wait till the “camera ready” message appears.

Note The camera may need to upgrade after installation. This may take a few minutes before the

camera is operational.

2. Press the Vi deo P r e vi ew softkey to check the picture quality.

–

If the video preview image looks too blue, try increasing the camera Brightness setting.

–

If the background looks washed out, try decreasing the camera Brightness setting.

Chapter 5 Setting Up the Cisco Unified Video Camera

Note For information about adjusting camera settings on the phone, see the Cisco Unified Video

Camera Quick Start Guide at this location:

http://www.cisco.com/en/US/products/ps10655/products_user_guide_list.html

3. Move the phone/camera to a position where there are no bright lights in the field of view.

4. Move the phone/camera so that the user is illuminated by light coming from the front.

Using the Cisco Unified Video Camera

For information about placing and receiving video calls, setting up video conferences, and adjusting camera settings on the phone, see the Cisco Unified Video Camera Quick Start Guide at this location:

http://www.cisco.com/en/US/products/ps10655/products_user_guide_list.html

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CHAP T E R

Understanding the VoIP Wireless Network

This chapter provides an overview of the interaction between a wireless-capable Cisco Unified IP Phone 9971 and other key components of a VoIP network in a wireless local area network (WLAN) environment. This chapter contains the following sections:

• Understanding the Wireless LAN, page 6-1

• Understanding WLAN Standards and Technologies, page 6-2

• Bluetooth Wireless Technology, page 6-7

• Components of the VoIP Wireless Network, page 6-8

• Security for Voice Communications in WLANs, page 6-11

• VoIP WLAN Configuration, page 6-15

• Configuring Wireless LAN, page 6-16

Note For instructions on deploying and confi guring a wireless Cisco Unified IP Phone 9971, refer to the Cisco

Unified IP Phone 9971 Wireless LAN Deployment Guide at this location:

http://www.cisco.com/en/US/docs/voice_ip_comm/cuipph/9971_9951_8961/7_1_3/english/deploymen t/guide/9971dply.pdf

Understanding the Wireless LAN

With the introduction of wireless communication, Cisco Unified IP Phones with wireless capability , such as the Cisco Unified IP Phone 9971, can provide voice communication within the corporate WLAN. The Cisco Unified IP Phone depends upon and interacts with wireless access points (APs) and key Cisco IP telephony components, including Cisco Unified Communications Manager Administration, to provide wireless voice communication. Cisco Access Points can run in standalone or unified mode. Unified mode requires the Cisco Unified Wireless LAN Controller.

The Cisco Unified IP Phone 9971 exhibits Wi-fi capabilities which can be used 802.11a, 802.11b and

802.11g Wi-Fi.

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6-1

Understanding WLAN Standards and Technologies

Figure 6-1 shows a typical WLAN topology that enables the wireless tran smission o f voice for wi reless

IP telephony.

Figure 6-1 WLAN with Wireless IP Phones

IP IP IP IP

Chapter 6 Understanding the VoIP Wireless Network

06565

When a Cisco Unified IP Phone powers on, it searches for and becomes associated with an AP if the phone Wireless access is set to On.

The AP uses its connection to the wired network to transmit data and voice packets to and from the switches and routers. Voice signaling is transmitted to the Cisco Unified Communications Manager server for call processing and routing.

APs are critical components in a WLAN because they provide the wireless links or “hot spots” to the network. Cisco requires that the APs supporting voice communications use Cisco IOS Release 12.3(8)JA or later. Cisco IOS software provides features for managing voice traffic.

In some WLANs, each AP has a wired connection to an Ethernet switch, such as a Cisco Catalyst 3750, that is configured on a LAN. The switch provides access to gateways and the Cisco Unified Communications Manager server to support wireless IP telephony.

Some networks have wired components that support wireless components. The wired components can comprise switches, routers, and bridges with special modules to enable wireless capability.

For more information about Cisco Unified Wireless Networks, refer to

http://www.cisco.com/en/US/products/hw/wireless/index.html

Understanding WLAN Standards and Technologies

This section describes the following concepts:

• 802.11 Standards for WLAN Communications, page 6-3

• World Mode (802.11d), page 6-4

6-2

• Radio Frequency Ranges, page 6-5

• 802.11 Data Rates, Tx Power, Ranges, and Decibel Tolerances, page 6-5

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Chapter 6 Understanding the VoIP Wireless Network

• Wireless Modulation Technologies, page 6-6

• AP, Channel, and Domain Relationships, page 6-7

• WLANs and Roaming, page 6-7

802.11 Standards for WLAN Communications

Wireless LANs must follow the Institute of Electrical and Electronics Engineers (IEEE) 802.11 standards that define the protocols that govern all Ethernet-based wireless traffic. The Cisco Uni fied I P Phone supports the following standards:

• 802.11a—Uses the 5 GHz band that provides more channels and improved data rates by using

OFDM technology. Dynamic Frequency Selection (DFS) and Transmit Power Control (TPC) support this standard.

• 802.11b—Specifies the radio frequency (RF) of 2.4 Ghz for both transmitting and receiving da ta at

lower data rates (1,2,5.5, 11 Mbps).

• 802.11d—Enables access points to advertise their currently supported radio channels and transmit

power levels. The 802.11d enabled client then uses that information to determine which channels and powers to use. The Cisco Unified IP Phone 9971 requires world mode (802.11d) to determine which channels are legally allowed for any given country. For supported channels, see Make sure that 802.11d is properly configured on the Cisco IOS Access Points or Cisco Unified Wireless LAN Controller; for more information, see the

page 6-4.

• 802.11e—QoS

• 802.11g—Uses the same unlicensed 2.4 Ghz band as 802.11b, but extends the data rates to provide

greater performance by using Orthogonal Frequency Division Multiplexing (OFDM) technology. OFDM is a physical-layer encoding technology for transmitting signals by using RF.

Understanding WLAN Standards and Technologies

Table 6-1.

“World Mode (802.11d)” section on

• 802.11h—5 GHz spectrum and transmit power management

• 802.11i—Security

Table 6-1 Supported Channels for the Cisco Unified IP Phone 9971

Part Number Band Range Available Channels 5 GHz Channel Set

CP-9971-K9 2.412 – 2.484 GHz

5.180 – 5.240 GHz

5.260 – 5.320 GHz

5. 500 – 5.700 GHz

5.745 – 5.805 GHz

Note 802.11j (channels 34, 38, 42, 46) and channel 165 are not supported.

13 (14 in Japan) 4 4 11 4

UNII-2 UNII-2 UNII-2 Extended UNII-3

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Understanding WLAN Standards and Technologies

World Mode (802.11d)

If you are using the Cisco Unified IP Phone 9971 in the World Mode, you must enable Wo rld mode (802.11d). The Cisco Unified IP Phone 9971 uses 802.11d to determine which channels and transmit powers to use and inherits its client configuration from the associated access point.

Note Enabling W orld Mode (802.1 1d) may n ot be necessary if the frequency is 2.4GHz and the current access

point is transmitting on a channel 1-11.

As all countries support these frequencies, you can attempt to scan these channels regardless of supporting World Mode (802.11d). For the countries which support 2.4GHz, refer to Cisco Unified IP

Phone 9971 Wireless LAN Deployment Guide.

Enable World Mode (802.11d) for the corresponding country where the access point is located. World Mode is enabled automatically for the Cisco Unified Wireless LAN Controller.

World Mode must be enabled manually for Cisco Autonomous Access Points using the following commands:

Interface dot11radio X

world-mode dot11d country US both

Chapter 6 Understanding the VoIP Wireless Network

Supported Countries

The following countries are supported by the Cisco Unified IP Phone 9971:

Argentina (AR) India (IN) Poland (PL) Australia (AU) Indonesia (ID) Portugal (PT) Austria (AT) Ireland (IE) Puerto Rico (PR) Belgium (BE) Israel (IL) Romania (RO) Brazil (BR) Italy (IT) Russian Federation (RU) Bulgaria (BG) Japan (JP) Saudi Arabia (SA) Canada (CA) Korea (KR / KP) Singapore (SG) Chile (CL) Latvia (LV) Slovakia (SK) Colombia (CO) Liechtenstein (LI) Slovenia (SI) Costa Rica (CR) Lithuania (LT) South Africa (ZA) Cyprus (CY) Luxembourg (LU) Spain (ES) Czech Republic (CZ) Malaysia (MY) Sweden (SE) Denmark (DK) Malta (MT) Switzerland (CH) Estonia (EE) Mexico (MX) Taiwan (TW) Finland (FI) Monaco (MC) Thailand (TH) France (FR) Netherlands (NL) Turkey (TR) Germany (DE) New Zealand (NZ) Ukraine (UA) Gibraltar (GI) Norway (NO) United Arab Emirates (AE) Greece (GR) Oman (OM) United Kingdom (GB) Hong Kong (HK) Panama (PA) United States (US)

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Chapter 6 Understanding the VoIP Wireless Network

Understanding WLAN Standards and Technologies

Hungary (HU) Peru (PE) Venezuela (VE) Iceland (IS) Philippines (PH) Vietnam (VN)

Radio Frequency Ranges

WLAN communications use the following radio frequency (RF) ranges:

• 2.4 GHz—Many devices that utilize 2.4 GHz can potentially interfere with the 802.11b/g

connection. An interferer can produce a Denial of Service (DoS) scenario, possibly preventing successful 802.11 transmissions.

• 5 GHz—Divided into several sections called Unlicensed National Information Infrastructure (UNII)

bands and has four channels each. The channels are spaced at 20 channels and more channels than with 2.4

GHz.

MHz to provide non-overlapping

802.11 Data Rates, Tx Power, Ranges, and Decibel Tolerances

Ta ble 6- 2 lists the Tx power capacities, data rates, ranges in feet and meters, and decibels tolerated by

the receiver by 801.11 standard.

Table 6-2 Tx Power, Data Rates, Ranges, and Decibels by Standard

Standard Maximum Tx Power1Data Rate

802.11a

16 dBm 6 Mbps 604 ft (184 m) -91 dBm

9 Mbps 604 ft (184 m) -90 dBm 12 Mbps 551 ft (168 m) -88 dBm 18 Mbps 545 ft (166 m) -86 dBm 24 Mbps 512 ft (156 m) -82 dBm 36 Mbps 420 ft (128 m) -80 dBm 48 Mbps 322 ft (98 m) -77 dBm 54 Mbps 289 ft (88 m) -75 dBm

802.11g

16 dBm 6 Mbps 709 ft (216 m) -91 dBm

9 Mbps 650 ft (198 m) -90 dBm 12 Mbps 623 ft (190 m) -87 dBm 18 Mbps 623 ft (190 m) -86 dBm 24 Mbps 623 ft (190 m) -82 dBm 36 Mbps 495 ft (151 m) -80 dBm 48 Mbps 413 ft (126 m) -77 dBm 54 Mbps 394 ft (120 m) -76 dBm

Range Receiver Sensitivity

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Understanding WLAN Standards and Technologies

Table 6-2 Tx Power, Data Rates, Ranges, and Decibels by Standard (continued)

Chapter 6 Understanding the VoIP Wireless Network

Standard Maximum Tx Power1Data Rate

802.11b

17 dBm 1 Mbps 1,010 ft (308 m) -96 dBm

1. Adjusts dynamically when associating with an AP if the AP client setting is enabled.

2. Advertised rates by the APs are used. If the Restricted Data Rates functionality is enabled in the Cisco Unified Communications Manager Administration phone configuration, then the Traffic Stream Rate Set IE (CCX V4) is used.

For more information about supported data rates, tx power and rx sensitivity for WLANs, see Cisco

Unified IP Phone 9971 Wireless LAN Deployment Guide.

Wireless Modulation Technologies

Wireless communications uses the following modulation technologies for signaling:

• Direct-Sequence Spread Spectrum (DSSS)—Prevents interference by spreading the signal over the

frequency range or bandwidth. DSSS technology multiplexes chunks of data over several frequencies so that multiple devices can communicate without interference. Each device has a special code that identifies its data packets and all others are ignored. Cisco wireless 802.11b/g products use DSSS technology to support multiple devices on the WLAN.

• Orthogonal Frequency Division Multiplexing (OFDM)—Transmits signals by using RF. OFDM is

a physical-layer encoding technology that breaks one high-speed data carrier into several lower-speed carriers to transmit in parallel across the RF spectrum. OFDM, when used with 802.1 1g and 802.11a, can support data rates as high as 54

Table 6-3 provides a comparison of data rates, number of channels, and modulation technologies by

standard.

Range Receiver Sensitivity

2 Mbps 951 ft (290 m) -85 dBm

5.5 Mbps 919 ft (280 m) -90 dBm 11 Mbps 902 ft (275 m) -87 dBm

Mbps.

6-6

Table 6-3 Data Rates, Number of Channels, and Modulation Technologies by IEEE Standard

Item 802.11b 802.11g 802.11a

Data Rates 1, 2, 5.5, 11 Mbps 6, 9, 12, 18, 24, 36, 48,

54 Mbps

Non-overlapping

3 (Japan uses 4) 3 U p to 23

6, 9, 12, 18, 24, 36, 48, 54 Mbps

Channels Wireless

DSSS OFDM OFDM

Modulation

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Chapter 6 Understanding the VoIP Wireless Network

AP, Channel, and Domain Relationships

APs transmit and receive RF signals over channels within the 2.4 GHz or 5 GHz frequency band. To provide a stable wireless environment and reduce channel interference, you must specify non-overlapping channels for each AP. The recommended channels for 802.11b and 802.11g in North America are 1, 6, and 11.

Note In a non controller-based wireless network, it is recommended t hat you stat ically config ure channels for

each AP. If your wireless network uses a controller, use the Auto-RF feature with minimal voice disruption.

For more information about APs, see the “VoIP WLAN Configuration” section on page 6-15. For more information about AP, channel and domain relationships, see Cisco Unified IP Phone 9971

Wireless LAN Deployment Guide.

WLANs and Roaming

Bluetooth Wireless Technology

The Cisco Unified IP Phone 9971 supports Cisco Centralized Key Management (CCKM), a centralized key management protocol, and prov ides a cache of session credentials on the wireless d omain server (WDS). APs must register to the WDS for fast roaming to work. CCKM is also supported on the Cisco Unified Wireless LAN Controller alone.

The Cisco Unified IP Phone 9971 supports CCKM with 802.1x+WEP or WPA(TKIP) only. CCKM is not supported with WPA2 or WPA(AES). For details about CCKM, refer to the “Cisco Fast Secure Roaming Application Note” at:

http://www.cisco.com/en/US/products/hw/wireless/ps4570/prod_technical_reference09186a00801c522

3.html

Related Topics

• Voice QoS in a Wireless Network, page 6-9

• VoIP WLAN Configuration, page 6-15

Bluetooth Wireless Technology

Bluetooth enables low bandwidth wireless connections within a range of 30 feet (10 meters). The best performance is in the 3-to 6-foot (1- to 2-meter) range. Bluetooth wireless technology operates in the 2.4 GHz band which is the same as the 802.11b/g band. There can be a potential interference issues. It is recommended that you:

• Use 802.11a that operates in the 5 GHz band.

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• Reduce the proximity of other 802.11b/g devices, Bluetooth devices, microwave ovens, and large

metal objects.

For more information about using Bluetooth headsets with your Cisco Uni fied IP Phone, see th e “Using

Bluetooth Wireless Headsets” section on page 3-8.

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Chapter 6 Understanding the VoIP Wireless Network

Components of the VoIP Wireless Network

The Cisco Unified IP Phone must interact with several network components in the WLAN to successfully place and receive calls. The following topics describe network components:

• Interacting with Cisco Unified Wireless APs, page 6-8

• Associating to APs, page 6-8

• Voice QoS in a Wireless Network, page 6-9

• Interacting with Cisco Unified Communications Manager, page 6-11

Interacting with Cisco Unified Wireless APs

Cisco Unified IP Phones use the same APs as wireless data devices. However , voice traf fic over a WLAN requires different equipment configurations and layouts than a WLAN that is used exclusively for data traffic. Data transmission can tolerate a higher level of RF noise, packet loss, and channel contention than voice transmission. Packet loss during voice transmission can cause choppy or broken audio and make the phone call inaudible. Packet errors can also cause blocky or frozen video.

Because the Cisco Unified IP Phone 9971 are desktop and not mobile phones, changes in the local environment can cause phones to roam between access points and can affect the voice and video performance. In contrast, data users remain in one place or occasionally move to another location. The ability to roam while maintaining a call is one of the advantages of wireless voice, so RF coverage needs to include stairwells, elevators, quiet corners outside conference rooms, and passage ways.

To ensure good voice quality and optimal RF signal coverage, you must perform a site survey. The site survey determines settings suitable to wireless voice and assists in the design and layout of the WLAN; for example AP placement, power levels, and channel assignments.

After deploying and using wireless voice, you should contin ue to perfo rm post in stallati on si te surveys. When you add a group of new users, install more equipment, or stack large amounts of inventory, you are changing the wireless environment. A post installation surve y verifies that the A P covera ge is still adequate for optimal voice communications.

Note There are packet loss during roaming; however, the security mode and the presence of fast roaming

depicts how much packet is lost during tran smission.

For more information on Voice QoS in a wireless network, see Cisco Unified IP Phone 9971 Wireless

LAN Deployment Guide.

Associating to APs

At startup, the Cisco Unified IP Phone scans for APs with SSIDs and encryption types th at it recognizes. The phone builds and maintains a list of eligible APs and uses the following variables to determine the best AP.

• Received Signal Strength Indicator (RSSI)—Sign al strength of available APs within the RF

coverage area. The phone attempts to associate with the AP with the highest RSSI value.

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Chapter 6 Understanding the VoIP Wireless Network

Downstream QoS only

• Traffic Specification (TSpec)—Calculation of call limits and WLAN load balancing. The TSpec

value of each voice stream allows the system to allocate bandwidth to voice devices on a first-come, first-served basis. For more information, see

page 6-9.

The Cisco Unified IP Phone associates with the AP with the highest RSSI and lowest channel usage values (QBSS) that have matching SSID and encryption types. To ensure that voice traffic is handled properly, you must configure the correct QoS in the AP.

Related Topics

• Security for Voice Communications in WLANs, page 6-11

• VoIP WLAN Configuration, page 6-15

Voice QoS in a Wireless Network

Voice traffic on the Wireless LAN, like data traffic, is susceptible to delay, jitter, and packet loss. These issues do not impact the data end user, but have serious impl ications for a voice call. T o ensure that voi ce traffic receives timely and reliable treatment with low delay and low jitter, you must use Quality of Service (QoS), and use separate virtual LANs (VLANs) for voice and data. By isola ting the vo ice traf fic onto a separate VLAN, you can use QoS to provide priority treatment for voice packets when traveling across the network. Also, use a separate VLAN for data traffic, not the default native VLAN which is typically used for all network devices.

You need the following VLANs on the network switches and the APs that support voice connections on the WLAN:

Components of the VoIP Wireless Network

“Voice QoS in a Wireless Network” section on

• Voice VLAN—Voice traffic to and from the wireless IP phone

• Native VLAN—Data traffic to and from other wireless devices

Assign separate SSIDs to the voice and to the data VLANs. If you configure a separate management VLAN in the WLAN, do not associate an SSID with the management VLAN.

By separating the phones into a voice VLAN and marking voice packets with higher QoS, you can ensure that voice traffic gets priority treatment over data traffic resulting in lower packet delay and fewer lost packets.

Unlike wired networks with dedicated bandwidths, wireless LANs consider traffic direction when implementing QoS. Traffic is classified as upstream or downstream from the point of view of the AP as shown in Figure 6-2.

Figure 6-2 Voice Traffic in a Wireless Network

Downstream

Upstream

Downstream

Upstream

Bi-Directional QoS

Network

206564

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Components of the VoIP Wireless Network

Beginning with Cisco IOS release 12.2(1 1)JA, Cisco Aironet APs supp ort the conten tion-based channel access mechanism called Enhanced Distributed Coordination Function (EDCF). The EDCF-type of QoS has up to eight queues for downstream (toward the 802.11b/g clients) QoS. You can allocate the queues based on these options:

• QoS or Differentiated Services Code Point (DSCP) settings for the packets

• Layer 2 or Layer 3 access lists

• VLANs for specific traffic

• Dynamic registration of devices

Although you can have up to eight queues on the AP, you should use only two queues for voice traffic to ensure the best possible voice QoS. Place voice (RTP) and signaling (SCCP) traffic in the highest priority queue, and place data traffic in a best-effort queue.Although 802.11b/g EDCF does not guarantee that voice traffic is protected from data traffic, you should get the best statistical results by using this queuing model.

Note The Cisco Unified IP Phone marks the SCCP signaling packets with a DSCP value of 24 (CS3)

and RTP packets with DSCP value of 46 (EF).

Chapter 6 Understanding the VoIP Wireless Network

To improve reliability of voice transmissions in a nondeterministic environment, the Cisco Unified IP Phone supports the IEEE 802.11e industry standard and is Wi-Fi Multimedia (WMM) capable. WMM enables differentiated services for voice, video, best effort data and other traffic. However, in order for these differentiated services to provide sufficient QoS for voice packets, only a certain amount of voice bandwidth can be serviced or admitted on a channel at one time. If the network can handle “N” voice calls with reserved bandwidth, when the amount of voice traffic is increased beyond this limit (to N+1 calls), the quality of all calls suffers.

To help address the problems of VoIP stability and roaming, an initial Call Admission Control (CAC) scheme is required. With CAC, QoS is maintained in a network overload scenario by ensuring that the number of active voice calls does not exceed the configured limits on the AP. The Cisco Unified IP Phone can integrate layer 2 TSpec admission control with layer 3 Cisco Unified Communications Manager admission control (RSVP). During times of network congestion, calling or called parties receive a fast busy indication. The system maintains a small bandwidth reserve so wireless phone clients can roam into a neighboring AP (AP), even when the AP is at “full capacity.” After reaching the voice bandwidth limit, the next call is load-balanced to a neighboring AP without affecting the quality of the existing calls on the channel.

Implementing QoS in the connected Ethernet switch is highly desirable to maintain good voice quality. The COS and DSCP values that the Cisco Unified IP Phone sets do not need to be modified.

The DSCP, COS and UP (WMM) markings correctly for the optimum transmission of video frames.

Note The Cisco Unified IP Phone 9971 does not support Video CAC; however, Voice CAC is supported for

WLANs.

6-10

Related Topics

• Authentication Methods, page 6-11

• Interacting with Cisco Unified Communications Manager, page 6-11

• VoIP WLAN Configuration, page 6-15

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Cisco 8961 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Cisco Unified IP Phone 8961, 9951, and 9971 Administration Guide for Cisco Unified Communications Manager 8.5 (SIP)

CONTENTS

Preface

An Overview of the Cisco Unified IP Phone

Understanding the Cisco Unified IP Phone 8961, 9951, and 9971

What Networking Protocols are Used?

What Features are Supported on the Cisco Unified IP Phone 8961, 9951, and 9971?

Feature Overview

Configuring Telephony Features

Configuring Network Parameters Using the Cisco Unified IP Phone

Providing Users with Feature Information

Understanding Security Features for Cisco Unified IP Phones

Overview of Supported Security Features

Understanding Security Profiles

Identifying Secure (Encrypted) Phone Calls

Establishing and Identifying Secure Conference Calls

Establishing and Identifying Secure Calls

Call Security Interactions and Restrictions

Supporting 802.1X Authentication on Cisco Unified IP Phones

Overview

Required Network Components

Overview of Configuring and Installing Cisco Unified IP Phones

Security Restrictions

Configuring Cisco Unified IP Phones in Cisco Unified Communications Manager

Checklist for Configuring the Cisco Unified IP Phone 8961, 9951, and 9971 in Cisco Unified Communications Manager

Installing Cisco Unified IP Phones

Checklist for Installing the Cisco Unified IP Phone 8961, 9951, and 9971

Terminology Information

Preparing to Install the Cisco Unified IP Phone on Your Network

Understanding Interactions with Other Cisco Unified IP Telephony Products

Understanding How the Cisco Unified IP Phone Interacts with Cisco Unified Communications Manager

Understanding How the Cisco Unified IP Phone Interacts with the VLAN

Providing Power to the Cisco Unified IP Phone

Power Guidelines

Power Outage

Reducing Power Consumption on the Phone

Power Negotiation over LLDP

Obtaining Additional Information About Power

Understanding Phone Configuration Files

Understanding the Phone Startup Process

Adding Phones to the Cisco Unified Communications Manager Database

Adding Phones with Auto-Registration

Adding Phones with Auto-Registration and TAPS

Adding Phones with Cisco Unified Communications Manager Administration

Adding Phones Using BAT Phone Template

Determining the MAC Address for a Cisco Unified IP Phone

Setting Up the Cisco Unified IP Phone

Before You Begin

Network Requirements

Understanding the Cisco Unified IP Phone Components

Cisco Unified Communications Manager Configuration

Network and Computer Ports

Handset Rest

Speakerphone

Accessory Support on the Cisco Unified IP Phone 8961, 9951, and 9971

USB Port Data Information

External Speakers and Microphone

Headsets

Audio Quality Subjective to the User

Wired Headsets

USB Headsets

Analog Headsets

Wireless Headsets

Using Bluetooth Wireless Headsets

Handsfree Profile

Important Note about Headset Types

Using External Devices

Installing the Cisco Unified IP Phone

Connecting the Footstand

Phone Display Viewing Angle

Securing the Phone with a Cable Lock

Mounting the Phone to the Wall

Verifying the Phone Startup Process

Configuring Startup Network Settings

Configuring Security on the Cisco Unified IP Phone

Setting Up the Cisco Unified IP Color Key Expansion Module