Cisco 8961 User Manual

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)

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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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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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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

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711 1012 9 8

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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 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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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

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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Chapter 1 An Overview of the Cisco Unified IP Phone

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)

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.

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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Cisco 8961 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