Cisco 7920 - Unified Wireless IP Phone VoIP Administration Manual

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Cisco Wireless IP Phone 7920 Administration Guide for Cisco CallManager Release 4.0 and

4.1

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• 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 Cisco Systems, Inc. could void the FCC approval and negate your authority to operate the product.

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Cisco Wireless IP Phone 7920 Administration Guide for Cisco CallManager Release 4.0 and 4.1, CiscoWireless IP Phone 7920



Page 4

Page 5

Preface 13

Overview 13

Audience 13

Objectives 14

Organization 14

Related Topics

• Features Supported on the Cisco Wireless IP Phone 7920, page 1-3

• Providing Users with Feature Information, page 1-6

Features Supported on the Cisco Wireless

Phone 7920

Cisco Wireless IP Phone 7920 provides traditional telephony functionality, such as call forwarding and transferring, call pickup, redialing, speed dialing, conference calling, and voice messaging system access. In addition, the Cisco

Wireless IP Phone 7920 provides the following features:

• Wireless access to your corporate phone extension and phone services.

• Multiline appearances

• Up to eight local speed-dial hot keys

• Caller ID for incoming calls

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Features Supported on the Cisco Wireless IP Phone 7920

• Call-handling features such as forward, transfer, hold, call park, conference,

call pickup, and group pickup

• Configurable softkey for access to your personal phone book or IP phone

service

• Choice of four network profiles

• Choice of personal profiles for different environments, such as outdoors, or

meetings

• Access to web-based services such as weather, stock reports, and phone

directories

Like other network devices, you must configure the Cisco Wireless IP Phones to prepare them to access Cisco

“Configuring Network Features for the Cisco Wireless IP Phone” section on page 1-5 for more information about configuration options. Because the

Cisco IP Phone is a network device, you can obtain detailed status information about it. This information can assist you in troubleshooting problems that users might encounter when using their IP phones. See

Statistics, and Firmware Information on the Cisco Wireless IP Phone 7920,” for

tips on using this information.

Chapter 1 An Overview of the Cisco Wireless IP Phone 7920

CallManager and the rest of the IP network. See the

Chapter 8, “Viewing Status,

Related Topics

• Configuring Network Profile Settings, page 5-3

• Configuring Features, Templates, Services, and Users, page 7-1

Configuring Telephony Features

You can use the Cisco CallManager Administration application to set up phone registration criteria and calling search spaces, and to modify softkey templates, among other tasks. For more information, see

Templates, Services, and Users.”

In some places, this manual provides partial instructions for procedures that involve Cisco point you to the appropriate page in the Cisco provide some initial guidance.

CallManager Administration. These instructions are intended to

Chapter 7, “Configuring Features,

CallManager application and to

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Chapter 1 An Overview of the Cisco Wireless IP Phone 7920

For more information about the Cisco CallManager Administration application, refer to Cisco

CallManager documentation, including Cisco CallManager Administration Guide. You can also use the context-sensitive help that is available within the application. Access context-sensitive help by choosing Help > For this screen from the main menu bar.

You can access the complete Cisco CallManager documentation for your version at this location:

http://www.cisco.com/univercd/cc/td/doc/product/voice/c_callmg/index.htm

Related Topic

• Adding Phones to the Cisco CallManager Database, page 3-7

• Configuring Features, Templates, Services, and Users, page 7-1

Features Supported on the Cisco Wireless IP Phone 7920



Configuring Network Features for the Cisco Wireless IP Phone

Like other network devices, you must configure IP phones to access Cisco CallManager and the rest of the IP network. There are two methods for configuring network features such as DHCP, TFTP, and IP settings and wireless settings for the phone.

• Cisco 7920 Configuration Utility

• Network Config menu on the Cisco Wireless IP Phone 7920

You install the Cisco 7920 Configuration Utility on a computer and connect to the Cisco Wireless IP Phone 7920 with a USB cable to configure phone and network settings. For more information, see

Configuration Utility.”

You can also configure network settings on the phone itself. For more information about configuring features from the phone, see

Profile Settings”.

Related Topics

• Using the Cisco 7920 Configuration Utility, page 4-1

Chapter 4, “Using the Cisco 7920

Chapter 5, “Configuring Network

• Configuring Network Profile Settings, page 5-3

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Providing Users with Feature Information

If you are a system administrator, you are the primary source of information for Cisco Wireless IP Phone users in your network or company. To ensure that you distribute the most current feature and procedural information, familiarize yourself with Cisco Wireless IP Phone 7920 documentation. Make sure to visit the Cisco

IP Phone web site:

http://www.cisco.com/univercd/cc/td/doc/product/voice/c_ipphon/index.htm

From this site, you can view and order additional phone documentation. For complete ordering information, see the

page 16.

In addition to providing documentation, it is important to inform users about available Cisco IP Phone features—including features specific to your company or network—and about how to access and customize those features, if appropriate.

“Obtaining Documentation” section on

For a summary of the key information that you can provide to phone users, see

Appendix A, “Providing Information to Users By Using a Website.”

Note The radio frequency (RF) for the Cisco Wireless IP Phone 7920 is configured for

a specific regulatory domain. If users attempt to use this phone outside of the regulatory domain, the phone will not function properly and they might violate local regulation.

Related Topic

Providing Information to Users By Using a Website, page A-1

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CHAPTER

An Overview of the Wireless Network

With the introduction of wireless communication, mobile wireless IP phones can provide voice communication within the corporate wireless local area network (WLAN). The Cisco Wireless IP Phone 7920 depends upon and interacts with wireless access points and key Cisco Cisco

CallManager, to provide wireless voice communication.

This chapter provides you with an overview of the interaction between the Cisco

Wireless IP Phone 7920 and other key components of the Voice-over-IP

(VoIP) network in the WLAN environment.

• Understanding the Wireless LAN, page 2-1

IP telephony components, including

• Components of the VoIP Wireless Network, page 2-5

• Wireless Network and Access Point Configuration, page 2-19

• Understanding the Phone Startup Process, page 2-21

Understanding the Wireless LAN

This section includes the following topics about WLANs.

• The 802.11 Standards for Wireless LAN Communications, page 2-2

• Connecting to the Wireless Network, page 2-3

• Securing Voice Communications, page 2-4

In a traditional LAN, phones and computers use cables to transmit messages and data packets over a wire conductor. Wireless LANs use radio waves to carry the messages and data packets.

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WLANs require access point devices that receive and transmit radio signals. Cisco Aironet Access Points, such as the 1200, 1100, and 350 series models, support voice on a WLAN. incorporates wireless data for laptop computers and wireless IP telephony (WIPT) for Cisco Wireless IP Phone 7920 models.

When a wireless device powers on, it immediately searches for and becomes associated with an access point. As users move from one location to another within the corporate WLAN environment, the wireless device roams out of range of one access point and into the range of another. The access point uses the wired network to transmit data and voice packets to the switches and routers. Voice packets are sent to the Cisco

Figure 2-1 Wireless LAN with Cisco Wireless IP Phone 7920s

Chapter 2 An Overview of the Wireless Network

Figure 2-1 shows a typical WLAN topology that

CallManager server for call processing and routing.

The 802.11 Standards for Wireless LAN 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 802.11b standard is the most prevalent standard in wireless

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LAN communications and is commonly called WiFi. The 802.11b standard specifies the radio frequency (RF) of 2.4 GHz for both transmitting and receiving data at speeds of 1, 2, 5.5 and 11 Mbps.

The 2.4 GHz RF range is an open frequency range that does not require licensing. Many devices operate in this bandwidth including cordless phones and microwave ovens; consequently, wireless communication is susceptible to interference or noise. Interference does not destroy the signal, but can impede the transmission speed and reduce an 11 Mbps signal all the way down to a 1Mbps signal. In addition, RF interference can reduce the voice quality over the wireless network.

To help prevent interference, direct-sequence spread spectrum (DSSS) technology was developed to spread the signal out 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 it uses to identify its data packets and to ignore all others. The Cisco wireless products use DSSS technology to support multiple devices on the WLAN.

Understanding the Wireless LAN

Connecting to the Wireless Network

The critical components in the wireless network are the access points that provide the wireless links (or “hot spots”) to the network. Cisco requires that the access points supporting voice communications must run Cisco IOS Version 12.2(15)JA or later. Cisco IOS provides features for managing voice traffic. The Cisco Aironet Access Points that support IOS include the following access point series:

• Cisco Aironet Access Point 350

• Cisco Aironet Access Point 1100

• Cisco Aironet Access Point 1200

Each access point has a hard-wired connection to a network layer switch, such as a Cisco to gateways and the Cisco (WIPT).

Access points transmit and receive RF signals over channels within the 2.4 GHz frequency band. Regulatory domains determine the number of channels that wireless communications can use within the 2.4 Aironet Access Points support up to 11 communication channels in North America, 13 channels in Europe (ETSI) and 14 channels in Japan. An access point

Catalyst 4000, that is configured on the LAN. The switch provides access

CallManager server to support wireless IP telephony

GHz frequency band. The Cisco

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broadcasts on a specific channel within the available channel range. To provide a stable wireless environment and reduce channel interference, you must specify non-overlapping channels for each access point. The recommended channels are 1, 6, and 11 in North America.

The access point has a transmission range or coverage area that depends on its type of antenna and transmission power. The access point coverage range is from 500 to 1000 feet with effective isotropic radiated power (EIRP) output that scales at 1, 5, 20, 50, and 100mW. To provide effective coverage, access points need a range overlap of approximately 20 percent to allow uninterrupted connections as phone users roam from one access point to another.

Wireless network devices use a service set identifier (SSID). The SSID provides a way to group a set of user devices that can associate with a set of access points. Each wireless device that can use the access point is configured with the same SSID as the access point. For more information about configuring the access points, refer to the

Chapter 2 An Overview of the Wireless Network

Cisco Wireless IP Phone 7920 Design and Deployment Guide.

Securing Voice Communications

Because all WLAN devices that are within range can receive all other wireless LAN traffic, securing voice communications is critical. To ensure that voice traffic is not manipulated or intercepted by intruders, the Cisco Wireless IP

Phone 7920 and Cisco Aironet Access Points are supported in the overall

Cisco SAFE Security architecture.

To secure voice communications, wireless networks use authentication and encryption methods. Wired Equivalent Privacy (WEP) is the method that was first introduced for wireless security, but this method is easily compromised. To address the security problems and weaknesses of WEP, the WiFi Alliance defined Wireless Protected Access (WPA.)

Wi-Fi Protected Access is a standards-based, interoperable security enhancement that increases the level of data protection and access control for existing and future wireless LAN systems. It is derived from and will be forward-compatible with the upcoming IEEE 802.11i standard. WPA leverages Temporal Key Integrity Protocol (TKIP) for data protection and 802.1X for authenticated key management.

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Through stronger encryption algorithms, stronger authentication, and rapid key updates, WPA has significantly improved security compared to WEP. Wireless clients, such as wireless IP phones, can authenticate at either the access point or with the network by using a centralized remote authentication dial-in user service (RADIUS) server.

The Cisco Wireless IP telephony solution provides the following additional security areas:

• Wireless network security that prevents unauthorized logins and

compromised communications by using encryption and authentication with Wired Equivalent Privacy (WEP), Wireless Protected Access (WPA) and Cisco Light Extensible Authentication Protocol (LEAP)

• Password protection for directories and databases that includes a Cisco

Wireless IP Phone 7920 phone lock password.

Related Topics

Components of the VoIP Wireless Network

• Networking Protocols Used with Cisco Wireless IP Phones, page 2-6

• Security Mechanisms in the Wireless Network, page 2-13

Components of the VoIP Wireless Network

The Cisco Wireless IP Phone 7920 must interact with several network components in the wireless local area network (WLAN) to successfully place and receive calls.

The following topics provide an overview of the network components:

• Networking Protocols Used with Cisco Wireless IP Phones, page 2-6

• Interacting with the Cisco Aironet Access Point, page 2-8

• Roaming in a Wireless Network, page 2-10

• Voice Quality in a Wireless Network, page 2-12

• Security Mechanisms in the Wireless Network, page 2-13

• Interacting with Cisco CallManager, page 2-17

• Interacting with the DHCP Server, page 2-18

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Components of the VoIP Wireless Network

Networking Protocols Used with Cisco Wireless IP Phones

Cisco IP Phones support several industry-standard and Cisco networking protocols for voice communication. networking protocols that the Cisco Wireless IP Phone 7920 supports.

Ta b l e 2-1 Supported Networking Protocols on the Cisco Wireless IP Phone 7920

Networking Protocol Purpose Usage Notes

Tabl e 2-1 provides an overview of the

Cisco Centralized Key Management (CCKM)

Cisco Discovery Protocol (CDP)

Cisco Light Extensible Authentication Protocol (LEAP)

Dynamic Host Configuration Protocol (DHCP)

Key generation protocol used for fast authentication in wireless networks.

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.

Proprietary password-based mutual authentication scheme between the client (phone) and a RADIUS server.

Dynamically allocates and assigns an IP address to network devices.

DHCP enables an IP phone to connect to the network and become operational without the administrator assigning an IP address or configuring additional network parameters.

Cisco Wireless IP Phone 7920 uses CCKM for fast, secure roaming between access points.

The Cisco 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.

Cisco Wireless IP Phone 7920 uses LEAP for authentication with the wireless network.

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

Use DHCP custom option 150. With this method, you configure the TFTP server IP address as the option value. For additional supported DHCP configurations, refer to

Cisco

CallManager System Guide.

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Components of the VoIP Wireless Network

Table 2-1 Supported Networking Protocols on the Cisco Wireless IP Phone 7920 (continued)

Networking Protocol Purpose Usage Notes

Internet Protocol (IP) Messaging protocol that addresses

and sends packets across the network.

Real-Time Transport (RTP)

Standard for transporting real-time data, such as interactive voice and video, over data networks.

Skinny Client Control Protocol (SCCP)

Uses Cisco-proprietary messages to communicate between IP devices and Cisco CallManager.

Temporal Key Integrity Protocol (TKIP) with message integrity check

Encryption and data integrity protocol that encrypts data sent over the wireless LAN.

(MIC)

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

IP addresses, subnet, and gateway identifications are automatically assigned if you are using the Cisco

IP Phone with DHCP. If you are not using DHCP, you must manually assign these properties to each phone locally.

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

Cisco IP Phones use SCCP protocol for VoIP call signaling and enhanced features such as Message Waiting Indication (MWI).

Cisco Wireless IP Phone 7920 uses TKIP/MIC algorithms to secure and preserve the integrity of voice communications.

Transmission Control Protocol (TCP)

Trivial File Transfer Protocol (TFTP)

Connection-oriented transport protocol.

Method for transfering files over the network.

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

User Datagram Protocol (UDP)

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Connectionless messaging protocol for delivery of data packets.

Cisco IP Phones use TCP to connect to Cisco

CallManager and to access

XML services.

You must have a TFTP server in your network that the DHCP server automatically identifies. If more than one TFTP server is running in your network, you must manually assign a TFTP server to each phone.

Cisco IP Phones receive and process UDP messages. RTP voice traffic runs over UDP.

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Components of the VoIP Wireless Network

Table 2-1 Supported Networking Protocols on the Cisco Wireless IP Phone 7920 (continued)

Networking Protocol Purpose Usage Notes

Wi-Fi (802.11b) An open standard that defines

wireless methods of transmitting Ethernet traffic and is commonly called Wi-Fi. This standard defines radio frequencies (RF) and data speed for wireless LAN communications.

Wired Equivalent Privacy (WEP)

Wireless security protocol for encrypting data that uses an encryption key stored on the phone and access point.

Wireless Protected Access (WPA)

Provides stronger authentication, encryption key management and alternative encryption and message integrity methods.

Related Topics

Cisco Wireless IP Phone 7920 uses the 802.11b standard with a range of

2.4-2.497 GHz RF and dynamic data rate scaling of 1, 2, 5.5, and 11 Mbps.

Cisco Wireless IP Phone 7920 can use either static WEP or dynamic WEP keys for encryption, depending on the network security configuration.

Cisco Wireless IP Phone 7920 supports both WPA and WPA Pre-shared key authentication, including encryption using TKIP and MIC (message integrity check)

• Understanding the Phone Startup Process, page 2-21

• Components of the VoIP Wireless Network, page 2-5

• Modifying DHCP Settings, page 5-4

• Configuring TFTP Option, page 5-9

Interacting with the Cisco Aironet Access Point

Wireless voice devices use the same access points as wireless data devices. However, voice traffic 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 while searching a web page might

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cause the page to display slowly and might annoy the end user. However, packet loss during voice transmission can cause choppy or broken audio and make the phone call inaudible.

Wireless voice users are mobile and can roam across a campus or between floors in a building while they are connected to a call. Alternately, data users might move their PC to another location, but they reconnect at the new location. The ability to roam while maintaining voice session continuity is one of the advantages of wireless voice; therefore, RF coverage needs to include areas not usually covered for data, such as stairwells, elevators, quiet corners outside conference rooms, and passage ways.

To assure good voice quality and optimal RF signal coverage, you must perform a site survey that determines settings suitable to wireless voice. The survey results provide information for the design and layout of the WLAN for voice; for example, power levels, channel assignments, and access point placement. For more information about the site survey, refer to the

Design and Deployment Guide.

Components of the VoIP Wireless Network

Cisco Wireless IP Phone 7920

After deploying and using wireless voice, you should continue to perform post installation site surveys to verify that the locations of the access points and their configuration continues to meet the needs of your wireless voice users. When you add a group of new users or install more equipment or stack large amounts of inventory, you are changing the wireless environment. You must verify that the access point coverage is still adequate for optimal voice communications. See the

“Performing a Site Survey Verification” section on page 6-7 for more

information.

Associating to an Access Point

At startup, the Cisco Wireless IP Phone 7920 uses its radio to scan for access points with Service Set Identifiers (SSIDs) and encryption types that it recognizes. The phone builds and maintains a list of eligible access point targets and uses the following two variables to determine the best access point with which to associate.

• Received Signal Strength Indicator (RSSI)—The phone uses this value to

determine the signal strength of available access points within the RF coverage area. The phone attempts to associate with the access point with the highest RSSI value.

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• QoS Basis Service Set (QBSS)—The access point uses this beacon

information element (IE) to send the channel utilization of the access point to the Cisco

Wireless IP Phone. The phone uses the QBSS value to determine

whether the access point can effectively handle more traffic.

The Cisco Wireless IP Phone associates with the access point with the highest RSSI and lowest channel utilization values (QBSS) that have matching SSID and encryption types.

Related Topics

• Roaming in a Wireless Network, page 2-10

• Securing Voice Communications, page 2-4

• Wireless Network and Access Point Configuration, page 2-19

Roaming in a Wireless Network

Chapter 2 An Overview of the Wireless Network

Cisco Wireless IP Phone users have the ability to move from one location in the premises to another while conversing on the phone. Unlike cellular phones that have broad coverage, the coverage area for the Cisco

Wireless IP Phone is smaller; therefore, phone users must roam from one access point to another more frequently. To understand some of the limitations of roaming with wireless IP phones, the following examples provide information about roaming in the WLAN.

• Pre-call Roaming—A Cisco Wireless IP Phone 7920 user powers on the

phone in the office, and the phone associates with the nearby access point. The user leaves the building and moves to another building where he places a call. The phone associates with a different access point in order to place the call from the new location. If the associated access point is within the same Layer 2 VLAN, the IP address remains the same for the phone. But, if the roaming phone crosses a Layer 3 boundary with DHCP enabled, the phone recognizes that it is no longer in the same subnet. The phone requests a new IP address before it can connect to the network and place the call.

• Mid-call Roaming—A Cisco Wireless IP Phone 7920 user is actively

engaged in a call and moves from one building to another. The roaming event occurs when the phone moves into the range of a different access point, and the phone authenticates and associates with the new access point. The current access point hands the call over to the new access point while maintaining continuous audio connection without user intervention. As long as the access

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points are in the same Layer 2 subnet, the Cisco Wireless IP Phone keeps the same IP address and the call continues. As a Cisco between access points, it must re-authenticate with each new access point. See the

“Security Mechanisms in the Wireless Network” section on page 2-13

for information about authentication.

If the Cisco Wireless IP Phone user moves from an access point that covers IP Subnet

A to an access point that covers IP Subnet B, the phone no longer has an IP address or gateway that is valid within the new subnet and the call can disconnect.

With the release of the Cisco Catalyst 6500 Series Wireless LAN Services Module (WLSM), the Cisco Wireless IP Phone 7920 now supports Layer 3 roaming. For details about the Cisco WLSM, refer to the product documentation available at:

http://www.cisco.com/univercd/cc/td/doc/product/lan/cat6000/cfgnotes/wls m_1_1/index.htm

Components of the VoIP Wireless Network

Wireless IP Phone roams

• Fast and Secure Roaming—Cisco Centralized Key Management (CCKM)

enables authenticated client devices to roam securely from one access point to another without any perceptible delay during reassociation. With the support of CCKM protocol, the Cisco

Wireless IP Phone 7920 is able to negotiate the handoff from one access point to another more easily. During the roaming process, the phone must scan for the nearby access points, determine which access point can provide the best service, then reassociate with the new access point. When implementing stronger authentication methods, such as WPA and LEAP, the number of information exchanges increases and causes more delay during roaming. 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_r eference09186a00801c5223.html

To solve this issue, CCKM, a centralized key management protocol, provides a cache of session credentials on the wireless domain server (WDS). As the phone roams from one access point to the next, CCKM compresses the number of message exchanges during roaming by providing a master key stored on the WDS for the access point to use. The reassociation exchange is reduced to two messages, thereby reducing the roaming time.

Related Topics

• Voice Quality in a Wireless Network, page 2-12

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• Interacting with the Cisco Aironet Access Point, page 2-8

• Wireless Network and Access Point Configuration, page 2-19

Voice Quality 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 implications for a voice call. To ensure that voice 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 isolating the voice traffic onto a separate VLAN, you can use QoS to provide priority treatment for voice packets when traveling across the network. You need the following VLANs on the network switches and the access points that support voice connections on the WLAN.

• Voice VLAN—Voice traffic to and from the wireless IP phone

Chapter 2 An Overview of the Wireless Network

• Native VLAN—Data traffic to and from the wireless PC (native VLAN)

Assign separate SSIDs to the voice and to the data VLANs. You can also configure a separate management VLAN in the WLAN, but do not associate an SSID with the management VLAN.

By separating the phones onto a voice VLAN and marking voice packets with higher CoS, you can ensure that voice traffic gets priority treatment over data traffic.You can management traffic resulting in lower delay and fewer lost packets.

For more information, refer to the Cisco Wireless IP Phone 7920 Design and

Deployment Guide.

Related Topics

• Security Mechanisms in the Wireless Network, page 2-13

• Interacting with Cisco CallManager, page 2-17

• Wireless Network and Access Point Configuration, page 2-19

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Components of the VoIP Wireless Network

Security Mechanisms in the Wireless Network

Before a wireless device can communicate on the network, it must authenticate with the access point or the network by using an authentication method. The Cisco

Wireless IP Phone 7920 can use these authentication methods in the

WLAN:

• Open Authentication—In an Open system, any wireless device can request

authentication. The access point that receives the request may grant authentication to any requestor or only to requestors on a list of users. Communication between the wireless device and access point could be non-encrypted or devices can use WEP keys to provide security. Devices that are using WEP only attempt to authenticate with an access point that is using WEP.

• Shared Key Authentication—During shared key authentication, the access

point sends an unencrypted challenge text string to any device attempting to communicate with the access point. The device that is requesting authentication encrypts the challenge text using a pre-configured WEP key and sends it back to the access point. If the challenge text is encrypted correctly, the access point allows the requesting device to authenticate. A device can authenticate only if its WEP keys match the WEP keys on the access points.

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Shared key authentication can be less secure than open authentication with WEP because someone can monitor the challenges. An intruder can calculate the WEP key by comparing the unencrypted and encrypted challenge text strings.

• WPA Pre-Shared Key (PSK) Authentication—The access point and the phone

are configured with the same authentication key. The pre-shared key (or password phrase) is used to create unique pair-wise keys that are exchanged between each phone and the access point. You can configure the password phrase as a 64-character hexadecimal string or as an ASCII password of from 8 to 63 characters in length. Because the pre-shared key password is stored on the phone, it can be compromised if the phone is lost or stolen.

• LEAP Authentication—For maximum security, client devices can

authenticate to the network by using a Remote Authentication Dial-in User Service (RADIUS) server such as the Cisco

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Cisco LEAP is a proprietary authentication protocol that requires a LEAP-compliant RADIUS server. LEAP allows wireless devices to mutually authenticate by using a username and password through a centralized RADIUS server user database.

When a Cisco Wireless IP Phone roams from one access point to another, the next access point requires LEAP authentication, also. The voice stream will not flow until the LEAP authentication is completed at the next access point through the centralized RADIUS server.

To reduce the amount of delay between the access point and the RADIUS server, carefully plan where to locate the RADIUS server. A local RADIUS server introduces less delay during roaming than a remote RADIUS server. Small, remote offices can use a RADIUS server on the Cisco access point to authenticate up to 50 users.

Authenticated Key Management

Chapter 2 An Overview of the Wireless Network

The following authentication schemes use the RADIUS server to manage authentication keys:

• WiFi Protected Access (WPA)—Uses information on a RADIUS server to

• Cisco Centralized Key Management (CCKM)—Uses information on a

With WPA and CCKM, encryption keys are not entered on the phone , but are automatically derived between the access point and phone. But the LEAP username and password that are used for authentication must be entered on each phone.

Encryption Methods

To ensure that voice traffic is secure, the Cisco Wireless IP Phone 7920 supports Wired Equivalent Privacy (WEP) and Temporal Key Integrity Protocol (TKIP) for encryption. When you use either mechanism for encryption, both the signaling (SCCP) packets and voice (RTP) packets are encrypted between the access point and the Cisco

derive unique pair-wise keys for authentication. Because these keys are generated at the centralized RADIUS server, WPA provides more security than WPA pre-shared keys that are stored on the access point and phone.

RADIUS server and a wireless domain server (WDS) to manage and authenticate keys. The WDS creates a cache of security credentials for CCKM-enabled client devices for fast and secure reauthentication.

Wireless IP Phone.

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Chapter 2 An Overview of the Wireless Network

• WEP —When using WEP in the wireless network, authentication happens at

the access point by using open or shared-key authentication. The WEP key that is setup on the phone must match with the WEP key that is configured at the access point for successful connections. The Cisco IP

Phone 7920 supports WEP keys that use 40-bit encryption or a 128-bit

encryption and remain static on the phone and access point.

LEAP and CCKM authentication can use WEP keys for encryption. The RADIUS server manages the WEP key and passes a unique key to the access point after authentication for encrypting all voice packets; consequently, these WEP keys can change with each authentication.

• Temporal Key Integrity Protocol (TKIP)—WPA and CCKM use TKIP

encryption that has several improvements over WEP. TKIP provides per-packet key ciphering and longer initialization vectors (IVs) that strengthen encryption. In addition, a message integrity check (MIC) ensures that encrypted packets are not being altered. TKIP removes the predictability of WEP that helps intruders decipher the WEP key.

Components of the VoIP Wireless Network

Wireless

Note The Cisco Wireless IP Phone 7920 does not support Cisco Key Integrity

Protocol (CKIP) with CMIC or Advanced Encryption Standard (AES) encryption.

Choosing Authentication and Encryption Methods

Authentication and encryption schemes are setup within the wireless LAN. VLANS are configured in the network and on the access points and specify different combinations of authentication and encryption. An SSID is associated with a VLAN and its particular authentication and encryption scheme. In order for wireless client devices to authenticate successfully, you must configure the same SSIDs with their authentication and encryption scheme requirements on the access points and on the wireless client devices, such as the Cisco IP

Phone.

Some authentication schemes require specific types of encryption. With Open authentication, you have the option to use static WEP for encryption and added security. But if you are using Shared Key authentication, you must set static WEP for encryption, and you must configure the WEP key on the phone.

Wireless

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When using Authenticated Key Management (AKM) for the Cisco Wireless IP

Phone 7920, several choices for both authentication and encryption can be set up on the access points with different SSIDs. When the Cisco attempts to authenticate, it chooses the access point that advertises the authentication and encryption scheme that the phone can support. AKM can authenticate by using WPA Pre-shared key, WPA, or CCKM.

When you set up AKM on the phone, the access point can provide the encryption key when using WPA Pre-shared key or the key can be configured on the phone when using WEP. When using AKM, encryption options include WPA Pre-shared key, TKIP for WPA authentication, and TKIP or WEP for CCKM authentication.

For more information about authentication and encryption schemes and how they are configured, refer to the Cisco Aironet Configuration Guide for your model and release at this URL:

http://www.cisco.com/en/US/products/hw/wireless/ps4570/products_installation _and_configuration_guides_list.html

Chapter 2 An Overview of the Wireless Network

Wireless IP Phone

Tabl e 2-2 provides a list of authentication and encryption schemes configured on

the Cisco Aironet Access Points supported by the Cisco Wireless IP Phone 7920. The table shows the network configuration option for the phone that corresponds to the access point configuration.

Ta b l e 2-2 Authentication and Encryption Schemes

Access Point Configuration Cisco Wireless IP Phone 7920 Authentication Encryption Authentication Encryption

Open Static WEP

(optional)

Shared key Static WEP

(mandatory)

Open (optional) None or Static

WEP

Shared Key Static WEP

(mandatory)

Network EAP WEP LEAP WEP

Network EAP TKIP or WEP

AKM with CCKM TKIP or WEP (WDS required for CCKM)

Network EAP, TKIP with WPA AKM with WPA TKIP

Open TKIP with WPA

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or WPA Pre-shared Key

AKM with WPA

Pre-shared Key

TKIP

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Chapter 2 An Overview of the Wireless Network

Related Topics

• Interacting with Cisco CallManager, page 2-17

• Components of the VoIP Wireless Network, page 2-5

• Wireless Network and Access Point Configuration, page 2-19

Interacting with Cisco CallManager

Cisco CallManager is the call control component in the network that handles and routes calls for the Cisco the components of the IP telephony system—the phones, access gateways, and the resources—for such features as call conferencing and route planning. You must use Cisco

CallManager Release 3.3(3) SR1 or later for wireless voice

deployments.

Wireless IP Phone 7920. Cisco CallManager manages

Components of the VoIP Wireless Network

Before Cisco CallManager can recognize a phone, it must register with Cisco

CallManager and be configured in the database. For information about setting up phones in Cisco CallManager, see the

Cisco CallManager” section on page 3-6.

You can find more information about configuring Cisco CallManager to work with the IP phones and IP devices in the Cisco Guide and Cisco

Related Topics

• Configuring Cisco Wireless IP Phones in Cisco CallManager, page 7-2

• Phone Configuration Files and Profile Files, page 2-17

CallManager System Guide.

Phone Configuration Files and Profile Files

Configuration files for a phone define parameters for connecting to Cisco

CallManager and are stored on the TFTP server. In general, any time you make a change in Cisco phone, the phone configuration file changes automatically.

CallManager Administration that requires resetting the

“Configuring IP Phones in

CallManager Administration

Configuration files also contain information about the correct image load for the phone. If this image load differs from the one currently loaded on a phone, the phone contacts the TFTP server to request the new image file.

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The phone first requests the configuration file SEPxxxxxxxxxxxx.cnf.xml, where each xx is the two-digit lowercase hexadecimal representation of each integer in the phone’s MAC address. If the phone cannot find this file, it requests the configuration file XMLDefault.cnf.xml.

After the phone obtains the *.cnf.xml files, it requests a phone-specific profile file. If a phone cannot find this profile file, it requests the appropriate common profile file.

After the phone finds one of the profile files, or if it cannot find a profile file, it continues with its startup process.

Related Topic

• Understanding the Phone Startup Process, page 2-21

Interacting with the DHCP Server

Chapter 2 An Overview of the Wireless Network

Dynamic Host Configuration Protocol (DHCP) is a communications protocol that lets network administrators manage and automate the assignment of Internet Protocol (IP) addresses in a network. When an IP device is added to the network, it must have a unique IP address. Without DHCP, the IP address must be entered manually at each device. DHCP allocates IP addresses dynamically and reuses IP addresses when devices no longer need them.

If DHCP is enabled in the network, the Cisco Wireless IP Phone 7920 uses the DHCP scope settings in the DHCP server to perform the phone provisioning bootup process. You must configure the settings of the DHCP server in the Cisco

CallManager network.

The DHCP scope settings include the following:

• TFTP server

• DNS server IP address (optional unless using host names)

• Pool and range of the subnet mask, IP address, and gateway

The priority of the DHCP settings for the TFTP server is unique to the Cisco

Wireless IP Phone 7920, as shown in Ta ble 2-3.

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Ta b l e 2-3 DHCP Settings Priority

Priority DHCP Settings

1st DHCP option 150

2nd DHCP option 66

3rd SIADDR

4th ciscoCM1

If DHCP is disabled, the Cisco Wireless IP Phone 7920 uses the following network settings to perform the phone provisioning bootup process. You must configure these static parameters for each Cisco Wireless IP Phone 7920.

• Primary TFTP server IP

Wireless Network and Access Point Configuration

• Primary DNS server IP

• Secondary DNS server IP

• IP address

• Subnet mask IP

• Primary gateway IP

Wireless Network and Access Point Configuration

This section identifies key access point (AP) configuration options that are required for optimal voice performance. This is not a complete list of configuration steps or options for installing access points such as the Cisco Aironet Access Points. For more information about configuring your access point, refer to the appropriate installation and configuration guide for your model or the documentation for your access point.

When configuring a wireless voice LAN, use access points that run Cisco IOS Version 12.2(15)JA or later. The access points that run IOS include the following:

• Cisco Aironet Access Point 350 series

• Cisco Aironet Access Point 1100 series

• Cisco Aironet Access Point 1200 series

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Wireless Network and Access Point Configuration

• Cisco Aironet Access Point 1300 series

Tabl e 2-4 explains and provides references for many of the configuration

activities for the Cisco Aironet Access Point.

Ta b l e 2-4 Cisco Aironet Access Point Configuration Tasks

Activity Explanation Reference

Check that the Cisco

IOS version is the

recommended version

Configure a VLAN for voice

Configure Service Set Identifier (SSID) for each VLAN

Configure QoS settings for VLANs

Under System Software, check for Cisco IOS version 12.2(15)JA or later.

To isolate voice traffic and enable QoS, you need a separate voice VLAN on the access point and network switch.

Identifier for a set of wireless devices to communicate with each other. Several access points can have the same SSID to support a group of wireless phones.

Create a QoS policy for the voice VLAN and assign a higher CoS to voice traffic.

Refer to the Cisco Wireless

IP Phone 7920 Design and Deployment Guide

Interacting with the Cisco Aironet Access Point, page 2-8

Refer to the Cisco Wireless

IP Phone 7920 Design and Deployment Guide

Voice Quality in a Wireless Network, page 2-12

Refer to the Cisco Wireless

IP Phone 7920 Design and Deployment Guide

Interacting with the Cisco Aironet Access Point, page 2-8

Refer to the Cisco Wireless

IP Phone 7920 Design and Deployment Guide

Enable the QoS element for wireless IP phones to provide channel utilization (QBSS) information to phones.

Enable ARP caching Enable this option to ensure two-way

audio. The access point has ARP caching disabled by default.

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Voice Quality in a Wireless Network, page 2-12

Refer to the Cisco Wireless

IP Phone 7920 Design and Deployment Guide

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Understanding the Phone Startup Process

Table 2-4 Cisco Aironet Access Point Configuration Tasks (continued)

Activity Explanation Reference

Configure radio (802.11b) settings

Configure Security for the voice VLANs

Data Rate—Allow only 11 Mbps unless you have special device requirements.

Client Transmit Power—After a site survey, determine the appropriate power requirements and set a specific Client Transmit Power setting. The Cisco

Wireless IP Phone 7920 uses the

same setting as the access point.

Note If set for Max, the access point

does not advertise Client Transmit Power setting.

Use one of these authentication and encryption options for the SSID that corresponds to the voice VLAN:

• Open

• Shared Key

• LEAP

• AKM

Refer to the Cisco Wireless

IP Phone 7920 Design and Deployment Guide

Refer to the Cisco Wireless

IP Phone 7920 Design and Deployment Guide

Choosing Authentication and Encryption Methods, page 2-15

Related Topics

• Network Requirements, page 3-2

• Configuring IP Phones in Cisco CallManager, page 3-6

• Installing the Cisco Wireless IP Phone 7920, page 3-13

Understanding the Phone Startup Process

When connecting to the wireless VoIP network, the Cisco Wireless IP Phone 7920

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goes through a standard startup process, as described in your specific network configuration, not all of these steps may occur on your Cisco

Wireless IP Phone.

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Tab le 2-5. Depending on

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Understanding the Phone Startup Process

Ta b l e 2-5 Cisco IP Phone Startup Process

Step Description Related Topics

1. Powering on the

phone

2. Scanning for an

access point

The Cisco Wireless IP Phone 7920 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.

The Cisco Wireless IP Phone 7920 scans the RF coverage area with its radio. The phone scans its network profiles and searches for access points that have a matching SSID and authentication type. The phone associates with the access point with the highest RSSI and lowest channel utilization (QBSS) that matches with its network profile.

Providing Power to the Cisco IP Phone, page 3-17

Resolving Startup and Connectivity Problems, page 9-2

Interacting with the Cisco Aironet Access Point, page 2-8

Resolving Startup and Connectivity Problems, page 9-2

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Understanding the Phone Startup Process

Table 2-5 Cisco IP Phone Startup Process (continued)

Step Description Related Topics

3. Authenticating with

access point

The Cisco Wireless IP Phone 7920 begins the authenticating process.

• If set for Open, then any device can

authenticate to the access point. For added security, static WEP encryption might optionally be used.

• 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, then the LEAP user name

and password are authenticated by the RADIUS server before network access is available.

• If set for AKM, the phone looks for an

access point with one of the following key management options enabled:

Security Mechanisms in the Wireless Network, page 2-13

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–

WPA or CCKM—The phone authenticates with the RADIUS server.

–

WPA-PSK—The phone authenticates with the access point using the pre-shared key password.

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Understanding the Phone Startup Process

Table 2-5 Cisco IP Phone Startup Process (continued)

Step Description Related Topics

4. Configuring IP

network

5. Downloading Load

If the Cisco Wireless IP Phone is using DHCP to obtain an IP address, the phone queries the DHCP server to obtain one. If you are not using DHCP in your network, you must assign a static IP address to each phone locally.

In addition to assigning an IP address, the DHCP server directs the Cisco IP

Phone to a TFTP server. If the phone has a

Wireless

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

The Cisco Wireless IP Phone checks to verify that the proper firmware is installed or if new firmware is available to download.

Cisco CallManager informs devices using .cnf or .cnf.xml format configuration files of their load ID. Devices using .xml format configuration files receive the load ID in the configuration file.

• Modifying DHCP

Settings, page 5-4

• Configuring Static

Settings, page 5-6

• Resolving Startup and

Connectivity Problems, page 9-2

• Phone Configuration

Files and Profile Files, page 2-17

6. Downloading

config file

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The TFTP server has configuration files and profile files. A configuration file includes parameters for connecting to Cisco

CallManager and information about which image load a phone should be running. A profile file contains various parameters and values for phone and network settings.

• Configuring TFTP

Option, page 5-9

• Phone Configuration

Files and Profile Files, page 2-17

• Resolving Startup and

Connectivity Problems, page 9-2

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Understanding the Phone Startup Process

Table 2-5 Cisco IP Phone Startup Process (continued)

Step Description Related Topics

7. Connecting to

Cisco

CallManager

8. Registering to

Cisco

CallManager

The configuration file defines how the Cisco

IP Phone communicates with Cisco

CallManager. After obtaining the file from the TFTP server, the phone attempts to make a TCP connection to the highest priority Cisco

CallManager on the list.

If the phone was manually added to the database, Cisco

CallManager identifies and registers the phone. If the phone was not manually added to the database and auto-registration is enabled in Cisco

CallManager, the phone attempts to

auto-register itself in the Cisco

CallManager

• Interacting with

Cisco CallManager, page 2-17

• Resolving Startup and

Connectivity Problems, page 9-2

• Configuring IP

Phones in Cisco CallManager, page 3-6

• Adding Users to

Cisco CallManager, page 7-13

database.

Related Topics

• Configuring Cisco Wireless IP Phones in Cisco CallManager, page 7-2

• Phone Configuration Files and Profile Files, page 2-17

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Chapter 2 An Overview of the Wireless Network

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CHAPTER

Setting Up Cisco Wireless IP Phones

This chapter describes how to install and configure the Cisco Wireless IP

Phone 7920 on an IP telephony network:

• Preparing to Install the Cisco Wireless IP Phone 7920, page 3-1

• Configuring IP Phones in Cisco CallManager, page 3-6

• Installing the Cisco Wireless IP Phone 7920, page 3-13

Before You Begin

Before you install Cisco Wireless IP Phone 7920s, you must determine how you want to configure the phones in your wireless network. Then, you can install the phone and verify its functionality. For more information, see

Overview of the Wireless Network.”

Chapter 2, “An

The following sections provide network requirements and configuration tasks:

• Preparing to Install the Cisco Wireless IP Phone 7920, page 3-1

• Configuring IP Phones in Cisco CallManager, page 3-6

Preparing to Install the Cisco Wireless

Phone 7920

To install and configure the Cisco Wireless IP Phone, you must configure network settings, set up Cisco Review the following requirements and task list to prepare for the installation.

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CallManager, and make changes locally on the phone.

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Preparing to Install the Cisco Wireless IP Phone 7920

Network Requirements

For the Cisco Wireless IP Phone 7920 to successfully operate as a Cisco IP Phone endpoint, your network must meet the following requirements:

• Working Voice-over-IP (VoIP) network

–

VoIP configured on your Cisco routers and gateways

–

Cisco CallManager Release 3.3(3) SR1 or later or Cisco configured to handle call processing

Note You can use the Cisco Wireless IP Phone 7920 with

Chapter 3 Setting Up Cisco Wireless IP Phones

CallManager Express 3.0 or later installed in your network and

Cisco

CallManager 3.2, but you must configure the phone as a

Cisco

IP Phone 7960 device type. See the “Support for the Cisco

7920 Phone Type” section on page 3-11.

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

and subnet mask

• Working wireless network

–

Voice over the WLAN configured on your Cisco Aironet Access Points

–

Security implemented for authenticating wireless voice devices and users

Phone Configuration Tasks

See Table 3-1 for an overview of preparation tasks and installation procedures to configure Cisco Wireless IP Phone 7920s. For detailed information about these procedures, refer to the documentation that is listed in the table.

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Preparing to Install the Cisco Wireless IP Phone 7920

Ta b l e 3-1 Configuration Task List for the Cisco Wireless IP Phone

Required Task Purpose For More Information

1. Gather the following

information for use in Cisco

CallManager

Administration:

• Information for the device

information fields, if applicable, such as the device pool and calling search space.

• The Cisco CallManager

user to associate with the phone.

• The number of lines and

associated directory numbers to assign to the phone

• Features to configure for

the phone.

Use this information when using the Phone Configuration page in Cisco

CallManager

Administration.

Device Information fields on this page auto-populates if information is relevant and available. You can edit fields to override system settings on a per-device basis.

See the “Adding Phones to

the Cisco CallManager Database” section on page 3-7.

See the “Configuring Cisco

Wireless IP Phones in Cisco CallManager” section on page 7-2.

Refer to Cisco CallManager System Guide.

Refer to Cisco CallManager Administration Guide.

2. Configure routers, gateways,

and switches to handle voice communication.

3. Perform a site survey to

determine where to place and install access points (APs) for wireless voice coverage.

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Establishes the infrastructure for the IP telephony network.

Identifies areas where RF signal coverage is required. Locates high usage areas (conference rooms), areas with RF interference (labs, equipment rooms), and other necessary coverage areas for wireless phones (stairwells, elevators, breezeways).

See the “Components of the

VoIP Wireless Network” section on page 2-5 and the

documentation included with these devices.

Refer to the Cisco Wireless

IP Phone 7920 Design and Deployment Guide.

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Preparing to Install the Cisco Wireless IP Phone 7920

Table 3-1 Configuration Task List for the Cisco Wireless IP Phone (continued)

Required Task Purpose For More Information

4. Install and configure

Cisco

Aironet Access Points to provide optimal coverage for wireless phones.

5. Use one of the following

methods to add phones to the Cisco

CallManager database:

• With auto-registration

• With Cisco CallManager

Administration only

• With the

Bulk

Administration Tool

(BAT) only

• With BAT and the Tool for

Auto-Registered Phones Support (TAPS)

6. Obtain the MAC address from

the IP phone.

Establishes the coverage, channels, signal strength, and authentication for the wireless voice network.

The method that you use to add the phones to Cisco

CallManager determines how the directory number is assigned and whether you must obtain a MAC address first.

Only required when using Cisco

CallManager Administration or BAT to add phones to the Cisco

CallManager

database.

Refer to the Cisco Wireless

IP Phone 7920 Design and Deployment Guide.

See the “Adding Phones to

the Cisco CallManager Database” section on page 3-7.

Refer to Cisco CallManager Administration Guide.

Refer to Bulk

Administration Tool User Guide for Cisco

CallManager.

See the “Determining the

MAC Address of a Cisco IP Phone” section on page 3-10.

7. Configure network settings

and wireless settings by using the Cisco 7920 Configuration Utility or on the Cisco

Wireless IP Phone.

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3-4

Sets system parameters such as IP settings (if not using DHCP in the network) and assigns a TFTP server.

Sets SSID, authentication type, encryption method, transmission rate, and power for the phone.

See the “Cisco 7920

Configuration Utility Overview” section on page 4-4.

See the “Configuring

Network Profile Settings” section on page 5-3.

See the “Configuring

Wireless Settings for the Profile” section on page 5-10.

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Preparing to Install the Cisco Wireless IP Phone 7920

Table 3-1 Configuration Task List for the Cisco Wireless IP Phone (continued)

Required Task Purpose For More Information

8. Configure phone settings by

using the Cisco 7920 Configuration Utility.

9. Modify softkey templates to

customize phones.

10. Add phones and configure the

phone features such as call waiting, call forward, call park, and call pickup.

11. Add users to

Cisco

CallManager.

Sets phone settings such as ring tone, phone lock password, speed dials and phone book entries.

Provides alternate set of Cisco

CallManager softkeys to users who do not want default Cisco

Wireless IP Phone softkeys.

Adds phones to Cisco CallManager database and provides enhanced telephony functionality.

Associates a user with a phone, enabling access to the User Options web-based application where users set up features such as call forwarding and speed dial, and subscribe to services.

See the “Phone Profile

Window” section on page 4-16.

See the “Configuring

Softkey Templates” section on page 7-8.

Refer to Cisco CallManager Administration Guide.

See the “Configuring Cisco

Wireless IP Phones in Cisco CallManager” section on page 7-2.

Refer to Cisco CallManager Administration Guide.

See the “Adding Users to

Cisco CallManager” section on page 7-13.

Refer to Cisco CallManager Administration Guide.

12. Power on the Cisco Wireless

Phone to test that it

connects to the network.

13. Provide information to end

users about how to use their phones and how to configure their phone options.

Related Topics

• Understanding the Cisco Wireless IP Phone 7920, page 1-1

• Configuring IP Phones in Cisco CallManager, page 3-6

• Installing the Cisco Wireless IP Phone 7920, page 3-13

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Ensures that the phone communicates with the access point and Cisco

CallManager.

Ensures that users have adequate information to successfully use their Cisco

IP Phones.

See the Understanding the

Phone Startup Process, page 2-21.

See the Appendix A,

“Providing Information to Users By Using a Website.”

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Configuring IP Phones in Cisco CallManager

The Cisco IP Phone requires Cisco CallManager to handle call processing. Refer to Cisco Cisco is set up properly to manage the phone and to properly route and process calls.

Tabl e 3-2 explains and provides references for many of the configuration

activities for which you use Cisco CallManager Administration.

Ta b l e 3-2 Cisco CallManager Configuration Tasks

Activity Explanation For More Information

CallManager Administration Guide or context-sensitive help in the

CallManager Administration application to ensure that Cisco CallManager

Add phones to Cisco

CallManager

database.

Configure and assign telephony features

You can add phones one at a time or in batches, or you can have phones automatically register with Cisco

CallManager.

You must use Cisco CallManager Administration to configure and assign lines and telephony features to the Cisco

IP Phones.

Add and associate users In Cisco CallManager Administration,

you can add users to the database and associate them with specific phones. Users gain access to web pages that allow them to configure phone options such as call forwarding and speed dialing.

Related Topics

• Configuring Cisco Wireless IP Phones in Cisco CallManager, page 7-2

• Adding Phones to the Cisco CallManager Database, page 3-7

See the “Adding Phones to the

Cisco CallManager Database” section on page 3-7.

See the “Configuring Cisco

Wireless IP Phones in Cisco CallManager” section on page 7-2.

See the “Adding Users to

Cisco CallManager” section on page 7-13.

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Configuring IP Phones in Cisco CallManager

Adding Phones to the Cisco CallManager Database

Before installing the Cisco Wireless IP Phone, you must choose a method for adding phones to the Cisco entering the media access control (MAC) address of the phone. an overview of these methods.

Ta b l e 3-3 Methods for Adding Phones to the Cisco CallManager Database

Method

Using auto-registration No Results in automatic

CallManager database. Some methods require

Requires MAC Address?

Notes

assignment of directory numbers

Tabl e 3-3 provides

Using auto-registration with the Tool for Auto-Registered Phones Support (TAPS)

No Requires auto-registration and

BAT; updates information in the Cisco IP Phone and in Cisco

CallManager

Administration

Using Bulk Administration Tool (BAT)

Using the Cisco CallManager Administration only

Yes Allows for simultaneous

registration of multiple phones

Yes Requires phones to be added

individually

The following sections describe these methods:

• Adding Phones with Auto-Registration, page 3-8

• Adding Phones with Auto-Registration and TAPS, page 3-9

• Adding Phones with BAT, page 3-10

• Adding Phones with Cisco CallManager Administration, page 3-11

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Adding Phones with Auto-Registration

You can use auto-registration to quickly enter phones into the Cisco CallManager database without first gathering MAC

When auto-registration is enabled, Cisco CallManager begins the automatic startup process to obtain a directory number. During auto-registration, Cisco

CallManager automatically assigns the next available sequential directory

number to new phones as they register with Cisco

After registering phones with Cisco CallManager, you can modify any settings, such as the directory numbers, by using Cisco Additionally, you can move auto-registered phones to new locations and assign them to different device pools without affecting their directory numbers.

Auto-registration is disabled by default in Cisco CallManager. You must enable and properly configure auto-registration before connecting any Cisco the network. For information about enabling and configuring auto-registration, refer to Cisco

CallManager Administration Guide.

addresses from the phones.

Chapter 3 Setting Up Cisco Wireless IP Phones

CallManager.

CallManager Administration.

IP Phone to

Using Auto-Registration Prior to Release 3.3(3)SR1

If you use auto-registration to register the Cisco Wireless IP Phone 7920 with Cisco

CallManager 3.3 released prior to 3.3(3) SR1, you must make the configuration files on the phone available to the Cisco can be registered with the Cisco 7960 phone type. If the configuration files are not available, the Cisco

Use this procedure to enable the configuration files for Cisco CallManager releases prior to 3.3(3) SR1.

Procedure

Step 1 Log in to the Cisco CallManager Administration application. Step 2 From the menu bar, choose Service > Service Parameters.

The Service Parameters Configuration page appears.

Step 3 In the Service drop-down list box, choose Cisco TFTP. Step 4 Click the Advanced button.

CallManager cannot auto-register the phone.

CallManager so the phone

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Step 5 Scroll down on the page to Clusterwide parameters (Parameters that apply to all

servers), and set the Enable Caching of Configuration Files parameter to False.

Step 6 Click the Update button.

Related Topics

• Adding Phones with Auto-Registration and TAPS, page 3-9

• Adding Phones with Cisco CallManager Administration, page 3-11

• Adding Phones with BAT, page 3-10

Adding Phones with Auto-Registration and TAPS

You can add a group of phones quickly by using auto-registration and TAPS. First, use the Bulk Administration Tool (BAT) to add phones to the Cisco database with dummy MAC addresses. Then use TAPS to update MAC

CallManager

addresses

and download pre-defined configurations for the phones.

To implement TAPS, you or the end-users dial a TAPS directory number and follow voice prompts. When the process is complete, the phone has downloaded its directory number and other settings. The correct MAC address for the phone is updated in Cisco

CallManager Administration.

You must make sure that auto-registration is enabled in Cisco CallManager Administration for TAPS to function.

Refer to Bulk Administration Tool User Guide for Cisco CallManager for detailed instructions about BAT and about TAPS.

Related Topics

• Adding Phones with Auto-Registration, page 3-8

• Adding Phones with Cisco CallManager Administration, page 3-11

• Adding Phones with BAT, page 3-10

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Adding Phones with BAT

When you must add several phones at the same time to the Cisco CallManager database, you can use BAT. This plug-in application for Cisco enables you to perform batch operations, including registration, on multiple phones.

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

Determining the MAC Address of a Cisco IP Phone

When adding phones to the Cisco CallManager database using Cisco

CallManager Administration or using BAT, you must enter the media access control (MAC) address of the phone. the MAC address of the Cisco Wireless IP Phone.

Chapter 3 Setting Up Cisco Wireless IP Phones

CallManager

Tabl e 3-4 describes how to determine

Ta b l e 3-4 Determining the MAC Address of the Phone

Cisco IP Phone Model

7920 Choose Menu > Network

Method For More Information

See Chapter 5, “Configuring

Config > MAC Address and

Network Profile Settings”

look at the MAC Address field

7920 Remove the battery and look

on the back of the phone.

See the “Installing or

Removing the Phone Battery” section on page 3-17

For detailed instructions about using BAT, refer to Cisco CallManager

Administration Guide and to Bulk Administration Tool Guide for Cisco

CallManager.

Note When using BAT to add Cisco Wireless IP Phones, use the default setting for the

phone load. The phone load name includes symbols (-, _, .) and BAT does not permit symbols in an entry.

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Related Topics

• Support for the Cisco 7920 Phone Type, page 3-11

• Adding Phones with Auto-Registration, page 3-8

• Adding Phones with Auto-Registration and TAPS, page 3-9

• Adding Phones with Cisco CallManager Administration, page 3-11

Adding Phones with Cisco CallManager Administration

You can add phones individually to the Cisco CallManager database using Cisco

CallManager Administration. To do so, you first must obtain the MAC address for each phone. See the

Database” section on page 3-7 for instructions.

After you have collected MAC addresses, choose Device > Add a New Device in Cisco

CallManager Administration to begin.

“Adding Phones to the Cisco CallManager

For additional instructions and conceptual information about Cisco CallManager, refer to Cisco

CallManager Administration Guide and to Cisco CallManager

System Guide.

Related Topics

• Support for the Cisco 7920 Phone Type, page 3-11

• Adding Phones with Auto-Registration, page 3-8

• Adding Phones with Auto-Registration and TAPS, page 3-9

• Adding Phones with BAT, page 3-10

Support for the Cisco 7920 Phone Type

Cisco CallManager release 3.3(3) SR1 and later includes support for the Cisco

7920 phone type in the Cisco CallManager Administration application. (Previously, there was no phone type for this phone and you had to configure it as a Cisco IP Phone 7960.)

If you upgrade to Cisco CallManager release 3.3(3) SR1 and later, you can choose the Cisco 7920 phone type when adding the wireless phone. However, if you perform the upgrade and have Cisco wireless phones on your network that were

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previously configured as Cisco IP Phone 7960s, you will must remove those entries from the Cisco type to these phones. See the

CallManager database and assign the Cisco 7920 phone

“Re-registering the Phone Using the Cisco 7920

Phone Type” section on page 3-12 for details.

If you used auto-registration to register the Cisco Wireless IP Phone 7920 with Cisco

CallManager 3.3 released prior to 3.3(3) SR1, you must make the configuration files on the phone available to the Cisco can be registered with the Cisco 7920 phone type. See the

Auto-Registration Prior to Release 3.3(3)SR1” section on page 3-8 for details.

Re-registering the Phone Using the Cisco 7920 Phone Type

When you upgrade to Cisco CallManager version 3.3(3) SR1 and later, you might have Cisco Wireless IP Phone 7920s that were previously configured as Cisco

IP Phone 7960s. If this is the case, you must remove those phones from the Cisco

CallManager database and assign the Cisco 7920 phone type to the Cisco

Wireless IP Phone 7920 as follows.

CallManager so the phone

“Using

To perform this task, follow these steps:

Procedure

Step 1 Log in to the Cisco CallManager Administration application. Step 2 From the menu bar, choose System > Cisco CallManager.

The Cisco CallManager Configuration window displays.

Step 3 Choose Device > Phones. Step 4 Choose the records that match your Cisco Wireless IP Phone 7920s. Step 5 Click Delete to delete the records.

All Cisco Wireless IP Phone 7920s will be deleted from the Cisco CallManager database.

Step 6 In the Cisco CallManager Configuration window, choose Device > Add a New

Device.

The Add a New Device window displays.

Step 7 Select Phone from the Device Type drop-down menu and click Next.

The Add a New Phone window displays.

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Step 8 Select the Cisco 7920 phone type from the drop-down menu and click Next.

The Phone Configuration window displays.

Step 9 In the Phone Configuration window, enter information in the following fields:

• MAC Address

• Domain Name associated with this MAC Address

Step 10 Click Insert.

The Cisco CallManager Administration application asks if you want to assign a directory number.

Step 11 Enter the required fields.

Installing the Cisco Wireless IP Phone 7920

Note If you are running a Cisco CallManager version that is earlier than release 3.3(3)

SR1, you must assign the Cisco IP

Phone 7920 when adding the phone through the Cisco CallManager

IP Phone 7960 phone type to the Cisco Wireless

Administration application.

Related Topics

• Adding Phones with Auto-Registration, page 3-8

• Adding Phones with Auto-Registration and TAPS, page 3-9

• Adding Phones with Cisco CallManager Administration, page 3-11

• Adding Phones with BAT, page 3-10

Installing the Cisco Wireless IP Phone 7920

After setting up the wireless network to support voice communications and configuring the Cisco install the phones. This section includes the following installation information.

• Safety and Performance Information, page 3-14

Wireless IP Phones in Cisco CallManager, you are ready to

• Providing Power to the Cisco IP Phone, page 3-17

• Powering On the Wireless IP Phone 7920, page 3-23

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Safety and Performance Information

Review the following warnings before installing the Cisco IP Phone. To see translations of these warnings, refer to the Regulatory Compliance and Safety Information for the Cisco Wireless IP Phone 7920 document that accompanied this device.

Chapter 3 Setting Up Cisco Wireless IP Phones

Warning

Read the installation instructions before connecting the system to the power source.

This equipment will not be able to access emergency services during a power outage because of reliance on utility power for normal operation. Alternative arrangements should be made for access to emergency services. Access to emergency services can be affected by any call-barring function of this equipment.

Statement 1004

Statement 1071

Warning

Cisco Wireless IP Phone 7920 Administration Guide for Cisco CallManager Release 4.0 and 4.1

Do not use the Cisco Wireless IP Phone 7920 in hazardous environments such as areas where high levels of explosive gas may be present. Check with the site safety engineer before using any type of wireless device in such an environment.

The plug-socket combination for the battery charger must be accessible at all times, because it serves as the main disconnecting device.

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Installing the Cisco Wireless IP Phone 7920

Warning

The battery charger requires short-circuit (overcurrent) protection to be provided as part of the building installation. Install only in accordance with national and local wiring regulations.

The power supply must be placed indoors.

Statement 1045

Statement 331

Ultimate disposal of this product should be handled according to all national laws and regulations.

Statement 1040

Battery Safety Notices

These battery safety notices apply to the batteries that are approved by the Cisco Wireless IP Phone 7920 manufacturer.

There is the danger of explosion if the battery is replaced incorrectly. Replace the battery only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer’s instructions.

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Warning

Do not dispose of the battery pack in fire or water. The battery may explode if placed in a fire.

Caution The battery pack is intended for use only with this device.

Caution Do not disassemble, crush, puncture, or incinerate the battery pack.

Caution To avoid risk of fire, burns, or damage to your battery pack, do not allow a metal

object to touch the battery contacts.

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Caution Handle a damaged or leaking battery with extreme care. If you come in contact

with the electrolyte, wash the exposed area with soap and water. If the electrolyte has come in contact the eye, flush the eye with water for 15 minutes and seek medical attention.

Caution Do not charge the battery pack if the ambient temperature exceeds 104 degrees

Fahrenheit (40 degrees Celsius).

Caution Do not expose the battery pack to high storage temperatures (above 140 degrees

Fahrenheit, 60 degrees Celsius).

Chapter 3 Setting Up Cisco Wireless IP Phones

Caution When discarding a battery pack, contact your local waste disposal provider

regarding local restrictions on the disposal or recycling of batteries.

To obtain a replacement battery, contact your local dealer. Use only the batteries that have a Cisco part number.



Standard battery—CP-BATT-7920-STD Extended battery—CP-BATT-7920-EXT

Caution Use only the Cisco power supply that was provided with your phone. If you must

replace your power supply, refer to the list of Cisco part numbers.



North America—CP-PWR-7920-NA Central Europe—CP-PWR-7920-CE United Kingdom—CP-PWR-7920-UK China—CP-PWR-7920-CN Japan—CP-PWR-7920-JP

To see translations of the warnings that appear in this publication, refer to the

Regulatory Compliance and Safety Information for the Cisco Wireless IP

Phone 7920 document that accompanied this product.

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Related Topics

• Preparing to Install the Cisco Wireless IP Phone 7920, page 3-1

• Wireless Network and Access Point Configuration, page 2-19

Providing Power to the Cisco IP Phone

The Cisco Wireless IP Phone 7920 uses a battery for power. Tabl e 3-5 describes the types of batteries available for the Cisco Wireless IP Phone and the maximum talk and standby times.

Ta b l e 3-5 Batteries Available for the Cisco Wireless IP Phone 7920

Ty pe Technology Capacity Talk Time Standby Time

Standard Lithium-ion 1440/1560 mAh 3.5 hr 21 hr

Installing the Cisco Wireless IP Phone 7920

Extended Lithium-ion 1960 mAh 4.25 hr 30 hr

Note Standard batteries might be either 1440 mAh or 1560 mAh capacity.

The following sections provide information about the battery:

• Installing or Removing the Phone Battery, page 3-17

• Charging the Battery, page 3-19

• Using the Desktop Charger, page 3-21

Installing or Removing the Phone Battery

To install the battery in the Cisco Wireless IP Phone, follow these steps. See

Figure 3-1 for a graphical overview of these steps.

Procedure

Step 1 To install the battery, insert the battery catches (as shown in Figure 3-1) in the

corresponding slots at the bottom of the Cisco Wireless IP Phone 7920. Make sure that the metal contacts on the battery and the phone are facing each other.

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79675

Step 2 Press the battery to the body of the phone until it locks into place. Step 3 To remove the battery, press down on the locking catch, then lift and remove the

battery.

Figure 3-1 Cisco Wireless IP Phone 7920 Battery Installation

Chapter 3 Setting Up Cisco Wireless IP Phones

3-18

Locking catch—Press to release the battery

Battery catches—Insert these into the slots near the bottom of the phone

at battery installation.

Metal contacts—Match the contacts on the battery to the contacts on the

phone.

Note The media access control (MAC) address for each Cisco Wireless IP Phone 7920

appears on a printed label on the back of the phone underneath the battery.

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79679

Charging the Battery

To charge your battery quickly, use the AC adapter shown in Figure 3-2. Plug the AC adapter into a wall outlet, and insert the connector into the base of your Cisco

Wireless IP Phone 7920 or to the back of the desktop charger. You can use the phone while the battery is being charged.

Figure 3-2 Power Supply

Tabl e 3-6 shows the charging time for the two types of batteries. Check the

charging status on the phone display or on the front of the desktop charger. You can stop charging the battery when the battery is fully charged, and you can leave the batteries in the charger for extended time periods with no ill effects. Lithium because they have no memory. Batteries should handle up to 4000 recharges.

ion batteries can be partially charged without shortening the battery life,

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Ta b l e 3-6 Charging Time Information

Battery Type

Power Supply Connected to Phone

Power Supply Connected to Desktop Charger

Standard 3.5 hr 6 hr

Extended 4.5 hr 8.5 hr

To charge the Lithium ion battery, follow these steps:

Procedure

Step 1 Connect the cable from the power supply to the outlet in the phone. Step 2 Connect the power supply to an AC wall outlet as shown in Figure 3-3.

If the phone is turned off, the screen displays the message, “Battery Charging.” When the battery is charged, “Battery Full” displays.

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7920

ABC

DEF

JKL

MNO

GHI

TUV

WXYZ

PQRS

79676

If the phone is turned on, the battery indicator bar blinks, displaying the current power level. When the battery is charged, the indicator bar stops blinking, and “Charging Complete” displays.

Step 3 When the battery is fully charged, you can disconnect the charger from the phone,

and unplug the power cord from the AC wall outlet.

Figure 3-3 Charging the Phone Battery

Chapter 3 Setting Up Cisco Wireless IP Phones

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Using the Desktop Charger

The desktop charger, shown in Figure 3-4, can charge both the phone battery installed in the phone and an extra battery at the same time.

Figure 3-4 Desktop Charger

Installing the Cisco Wireless IP Phone 7920

1 Upper compartment—For the phone 4 AC adapter—Plugs into wall

2 Lower compartment—For the battery 5 LED indicator—Indicates battery

3 USB A-type to B-type cable—

Connects phone to the PC running Cisco 7920 Configuration Utility

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charging status

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Installing the Cisco Wireless IP Phone 7920

Note You can use the desktop charger to easily connect a phone to the

Cisco

7920 Configuration Utility to import or export settings. Connect the desktop charger and your computer with the standard USB cable, as indicated by callout 3 in Figure 3-4.  You must enable the USB port on the Cisco Wireless IP Phone. For more information, see the “Activating the USB Port on the Phone” section on page 4-5.

To use the desktop charger, see Figure 3-4 and follow these steps:

Procedure

Step 1 Plug the AC adapter into a wall outlet, and insert the connector (4) into the back

of the desktop charger.

Chapter 3 Setting Up Cisco Wireless IP Phones

Step 2 Insert the Cisco Wireless IP Phone 7920 into the upper compartment (1) of the

charger.

Step 3 Insert the spare battery into the lower compartment (2).

Note You can insert and charge the phone with a battery installed alone. Or you

can insert and charge the spare battery alone. Or you can charge both the phone and the spare battery at the same time.

The LED indicator (5) turns red when the battery is charging. The indicator turns green when the battery charging is complete. Batteries will stop charging after they are fully charged. You can leave the phone or batteries in the charger for extended periods of time with no problems.

Tabl e 3-7 gives the battery charging time information. Check the LED indicator

for the charging status. You can stop charging the battery when the battery is fully charged.

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Ta b l e 3-7 Battery Charging Time and Charging Configuration

Battery Charging Configuration Charging Time

Battery alone 6 hr

Battery installed in the phone 3.5 hr

Both battery installed in the phone and an extra battery 6 hr

Related Topics

• Powering On the Wireless IP Phone 7920, page 3-23

• Installing or Removing the Phone Battery, page 3-17

• Charging the Battery, page 3-19

Installing the Cisco Wireless IP Phone 7920

Powering On the Wireless IP Phone 7920

After charging the battery and configuring the Cisco Wireless IP Phone, you are ready to power on the phone. Use the following sections for more information about starting up the phone.

• Active and Standby Phone Modes, page 3-24

• Startup Settings for a Network Without DHCP, page 3-25

To power on the Cisco Wireless IP Phone 7920, press and hold the Power On button until the phone begins its startup process by cycling through these steps:

Note In a Cisco Light Extensible Authentication Protocol (LEAP)

environment, you might have to set the LEAP password.

1. The phone screen displays the Cisco Systems, Inc., copyright screen.

2. The phone screen displays these messages as the phone starts up:

• Authenticating with AP

• Configuring IP network

• Downloading load ID

• Downloading config file

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• Connecting to CallManager

• Registering to CallManager

3. The following information displays on the main phone screen:

• Current time and date

• Primary directory number

• Greeting message

• Softkey labels

When the phone passes through these stages with no errors, the phone started up properly. Now the phone is in standby mode and is ready to place or receive calls.

The signal icon in the upper right corner shows the strength of the signal between the wireless access point and the phone. The phone must have an adequate signal to successfully place or receive calls. If the signal icon displays fewer than three bars, the weak signal will cause problems with phone performance.

Chapter 3 Setting Up Cisco Wireless IP Phones

Note When the phone receives a weak signal, the phone displays this warning message,

“Weak signal detected” and sends a warning tone as specified in the Personal profile. For information about changing warning tones, refer to the “Using and Changing Profiles” chapter in the Cisco Wireless IP Phone 7920 Guide.

If the phone does not complete these steps successfully, see the “Resolving

Startup and Connectivity Problems” section on page 9-2.

Related Topics

• Active and Standby Phone Modes, page 3-24

• Startup Settings for a Network Without DHCP, page 3-25

• Understanding the Phone Startup Process, page 2-21

Active and Standby Phone Modes

When the Cisco Wireless IP Phone 7920 is powered on, it can be in one of these two modes:

• Active mode

• Standby mode

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Active mode—The phone is in active mode when the phone is performing one of the following actions:

• Connected to an active call

• Scanning for channels

• Sending CDP packets

• Sending keep-alive messages

• Reregistering with Cisco CallManager

As long as there is an active RTP stream, the phone remains in active mode and consumes power. The standard battery provides up to 3 hours of talk time in active mode and the extended battery provides up to 4.25 hours of talk time.

Standby mode—The phone goes into standby mode two seconds after a scan is complete. The standard battery provides up to 21 hours of standby time and the extended battery provides up to 30 hours of standby time.

Installing the Cisco Wireless IP Phone 7920

The phone will awake from standby mode in response to these events:

• Key pad activity

• Roaming

• Power cycling the phone

• Losing network connectivity

• Losing RF connectivity

• Transmitting scheduled CDP or keep-alive packets.

Related Topics

• Startup Settings for a Network Without DHCP, page 3-25

• Resolving Startup and Connectivity Problems, page 9-2

Startup Settings for a Network Without DHCP

If you are not using DHCP in your network, you must configure these network settings on the Cisco Wireless

IP Phone 7920:

• IP address

• Subnet mask

• Primary TFTP server IP address

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• Primary gateway IP address

• Primary DNS server IP address (optional)

Collect this information and follow the procedures defined in Chapter 5,

“Configuring Network Profile Settings.”

Related Topics

• Understanding the Phone Startup Process, page 2-21

• Resolving Startup and Connectivity Problems, page 9-2

Chapter 3 Setting Up Cisco Wireless IP Phones

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CHAPTER

Using the Cisco 7920 Configuration Utility

This chapter describes how to install and use the Cisco 7920 Configuration Utility, Version 2.0 to configure network and phone settings for the Cisco

Wireless IP Phone 7920. The following sections describe how to install and use the utility:

• How to Install the Cisco 7920 Configuration Utility, page 4-1

• How to Use the Cisco 7920 Configuration Utility, page 4-4

• Overview of the Application Windows, page 4-6

You can also use the Network Configuration menu on the Cisco Wireless IP

Phone 7920 to configure network settings. See Chapter 5, “Configuring

Network Profiles on the Cisco Wireless IP Phone 7920”.

How to Install the Cisco 7920 Configuration Utility

This section describes how to install the Cisco 7920 Configuration Utility, Version 2.0 and its components:

• System Requirements, page 4-2

• Installing the Cisco 7920 Configuration Utility, page 4-3

• Uninstalling the Cisco 7920 Configuration Utility, page 4-4

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How to Install the Cisco 7920 Configuration Utility

System Requirements

To install and run the Cisco 7920 Configuration Utility, your computer must meet these hardware and software requirements:

Hardware Requirements

• An IBM-compatible personal computer (PC) that runs Microsoft Windows

• A CD-ROM drive

• A keyboard and mouse or other pointing device

• A USB port and cable

Note Use a USB cable to connect the PC that is running the

Cisco proprietary USB cable that ships with the Configuration Utility software or you can use the desktop charger with a standard type 2 USB cable.

Chapter 4 Using the Cisco 7920 Configuration Utility

7920 Configuration Utility to the phone. You can use the

Software Requirements

Use one of these operating systems on the PC:

• Windows 98 (Second Edition)

• Windows ME

• Windows 2000 Professional (SP1 or later)

• Windows XP (Home Edition or Professional)

In addition, you need to install the following software:

• Cisco 7920 Configuration Utility Version 2.0

• Cisco Wireless IP Phone 7920 Firmware Release 2.0

Note The Cisco 7920 Configuration Utility 2.0 supports only Cisco Wireless

Phone 7920 Firmware Release 2.0. If you are using an earlier firmware version

on the phones, then you must use an earlier version of the Configuration Utility.

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How to Install the Cisco 7920 Configuration Utility

Related Topics

• Installing the Cisco 7920 Configuration Utility, page 4-3

• Uninstalling the Cisco 7920 Configuration Utility, page 4-4

Installing the Cisco 7920 Configuration Utility

You can install the Cisco 7920 Configuration Utility by using a CD or by downloading the software from the Cisco Software Download Center.

To install the Cisco 7920 Configuration Utility, follow these steps:

Procedure

Step 1 Insert the Cisco 7920 Configuration Utility CD into the CD-ROM drive or

download the software.

Step 2 Double-click the setup.exe file. The InstallShield Wizard window appears.

Step 3 The InstallShield Wizard provides step-by-step instructions that guide you

through the installation process. Click Next to continue, and follow the on-screen instructions.

Step 4 Click Finish when the installation is completed.

During installation, the following files are copied to your specified location:

• Cisco7920.exe: Main executable program

• Expat.dll: XML parser

• <Cisco 7920 USB>: USB Driver for the Cisco Wireless IP Phone 7920

Note The files are installed by default into this directory path:

C:\Program Files\Cisco\Cisco7920ConfigurationUtility\Cisco 7920 USB.

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How to Use the Cisco 7920 Configuration Utility

Uninstalling the Cisco 7920 Configuration Utility

To uninstall the Cisco 7920 Configuration Utility, use the Add/Remove Programs application in Windows Control Panel.

Related Topic

• How to Install the Cisco 7920 Configuration Utility, page 4-1

How to Use the Cisco 7920 Configuration Utility

This section provides the following information about using the Cisco

7920 Configuration Utility:

• Cisco 7920 Configuration Utility Overview, page 4-4

• Connecting the Cisco 7920 Configuration Utility to a Phone, page 4-5

Cisco 7920 Configuration Utility Overview

You can use the Cisco 7920 Configuration Utility to configure all the settings that are available for a Cisco Cisco

7920 Configuration Utility, you must complete these tasks:

• Use the USB cable to connect the phone to the PC where the

Cisco

7920 Configuration Utility is installed.

• Enable the USB port in the phone to communicate with the Configuration

Utility program.

• Establish the connection and log onto the phone.

• Use the Configuration Wizard to guide you through configuring the phone.

See the information.

• For more experienced users, you can use the Phone Profiles window and the

task buttons for configuring the phone settings. See the

Window” section on page 4-16 for more information.

“Using the Configuration Wizard” section on page 4-14 for detailed

Wireless IP Phone. To get started using the

“Phone Profile

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How to Use the Cisco 7920 Configuration Utility

Connecting the Cisco 7920 Configuration Utility to a Phone

Use a USB cable to connect the phone to the computer that is running Cisco

7920 Configuration Utility. You can use the proprietary USB cable that ships with the software or the desktop charger with a standard type 2 USB cable.

Note You can use the proprietary USB cable that ships with the software or you

can use the desktop charger with a standard type 2 USB cable.

To activate the USB port in the phone, you must access the Phone Settings menu on the phone. The following sections provide information to help you connect to a phone.

• Activating the USB Port on the Phone, page 4-5

• Connecting to the Cisco Wireless IP Phone, page 4-5

Activating the USB Port on the Phone

To use the Cisco 7920 Configuration Utility with the phone, you must activate the USB port before you can connect to the phone.

Procedure

Step 1 Power on the Cisco Wireless IP Phone 7920. Step 2 To enable the USB port on the phone, press the Menu softkey, then select Phone

Settings > USB Enable/Disable > Enable.

Step 3 Use the USB cable to connect the PC and the Cisco Wireless IP Phone 7920.

Connecting to the Cisco Wireless IP Phone

After enabling the USB port, you can log in to the phone by following these steps:

Note You need to disable any local firewalls that you have on your PC so you

can use the USB to connect to the phones.

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Overview of the Application Windows

Procedure

Step 1 To start the application, choose Start > Programs > Cisco Systems 7920 >

Cisco

7920 Configuration Utility.

The Configuration Utility executes Connection > Login automatically to connect the Cisco Wireless IP Phone 7920 with the PC.

Step 2 In the Login window, select the default username Admin, and enter the password

cisco. (For information about the online indicator, see the

Information” section on page 4-8.)

Note You can modify the administrator’s password by choosing Edit > Change

Admin Password.

After a moment, the 7920 Configuration Utility loads the phone configuration data into the Current Phone Settings window.

Chapter 4 Using the Cisco 7920 Configuration Utility

“Connection Status Bar

Step 3 To make modifications to the existing phone configuration, see the “Phone Profile

Window” section on page 4-16.

Note If you have problems connecting to the phone, see the Troubleshooting the

Network Connection for the Cisco 7920 Configuration Utility, page 4-37.

Overview of the Application Windows

The Cisco 7920 Configuration Utility graphical user interface provides the following windows to assist with adding new phones or modifying existing phones:

• Current Phone Settings—Displays information about the current

configuration in a phone.

• Configuration Wizard—Provides a step-by-step guide for configuring the

phone.

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• Phone Profile—Provides configuration fields that are organized by category

tab pages.

• Log History—Captures phone configuration events in a file.

This section describes the user interface and menu options of the Configuration Utility and includes these topics:

• Current Phone Settings Window, page 4-7

• Using the Configuration Wizard, page 4-14

• Phone Profile Window, page 4-16

• Log History Window, page 4-36

Current Phone Settings Window

Overview of the Application Windows

Figure 4-1 shows the Current Phone Settings window that displays when the

Configuration Utility connects to a phone. The field values in the phone configuration are view-only; to make changes to the configuration file, you must use the Configuration Wizard or Phone Profile windows.

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Figure 4-1 Cisco 7920 Configuration Utility - Current Phone Settings Window

Chapter 4 Using the Cisco 7920 Configuration Utility

Connection Status Bar Information

When you use the Connection menu option to log in to the phone, the LED indicator at the bottom left shows the current connection status as described in

Tabl e 4-1.

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Ta b l e 4-1 Connection Status

Status Indicator Operation Description

Overview of the Application Windows

Choose Connection > Login.

Choose the Import, Export, or Upload Firmware Image option.

Choose Connection > Login from the menu bar.

Choose Connection > Logout.

Disconnect the USB cable.

Using the Configuration Utility Menus

The Configuration Utility includes these menu options:

File Menu Options

The File menu provides the following standard Windows options:

The phone is in connecting status.

Connection is in progress when executing the Import, Export, or Upload Firmware Image option.

The phone is online, and a connection is established.

User can execute the Import, Export, and Upload Firmware Image options.

The phone is offline.

User cannot execute Import, Export, or Upload Firmware Image options.

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• New—Open a new configuration file for a phone.

• Open—Locate and open an existing configuration file.

• Save—Save changes to the configuration file.

• Save As—Save changes and give the configuration file a new filename.

• Exit—Close the application.

Edit Menu Options

The Edit menu provides these standard Windows editing options:

• Cut

• Copy

• Paste

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The Edit menu provides access to these options:

• Configuration Wizard and Phone Profile

• Change Admin Password

View Menu Options

When the Configuration Utility is started, the Current Phone Settings window and the Log History window appear automatically. You can use the View menu to toggle between these windows and to display or hide the Toolbar and Status Bar.

• Current Phone Settings

• Log History

• Tool bar

• Status Bar

Chapter 4 Using the Cisco 7920 Configuration Utility

Using the Connection Menu

The Connection Menu enables you to perform these tasks with the Configuration Utility:

• Logging In, page 4-11

• Changing the Administrator Password, page 4-11

• Logging Out, page 4-12

• Uploading the Firmware Image, page 4-12

• Resetting to Factory Default, page 4-13

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Logging In

You must log in to the phone to import, export, or upload firmware.

To log in to the phone, follow these steps:

Procedure

Step 1 From the menu bar, choose Connection > Login.

The Login window appears.

Step 2 Enter the username and password. The default usernames and passwords are as

shown in

Ta b l e 4-2 Default Username and Passwords

Tabl e 4-2.

Overview of the Application Windows

Username Password Authentication

Admin User

Note You can use the default user password to unlock the phone if the user has not

changed the keylock password. If the user changed the password and does not remember it, then you must call the Technical Assistance Center (TAC) to have the phone reset.

Changing the Administrator Password

You should change the Cisco 7920 Configuration Utility password for your local computer when you start the Configuration Utility for the first time. You need to log in with administrator password.

cisco By Configuration Utility

12345 By Cisco Wireless IP Phone 7920

privileges before you can change the administrator

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Overview of the Application Windows

To change the administrator password, follow these steps:

Procedure

Step 1 Choose Edit > Change Admin Password to display the Change Admin Password

window.

Step 2 In the New Password field, enter the new password. Step 3 In the Verify New Password field, enter the new password. Step 4 Click OK.

Logging Out

Chapter 4 Using the Cisco 7920 Configuration Utility

Logging out disconnects the Cisco Wireless IP Phone 7920 from the PC and prevents you from importing configuration files, exporting configuration files, or uploading the firmware image to the phone.

When you disconnect the USB cable, you are logged out automatically. If you switch to another phone in the On-Line mode, you are logged out of the C

onfiguration Utility automatically.

To log out, follow these steps:

Procedure

Step 1 From the menu bar, choose Connection > Logout.

The Logout window appears.

Step 2 Click Ye s to confirm that you wish to log out.

Uploading the Firmware Image

The Upload Firmware Image window allows you to specify a firmware image filename and to upload the file to the Cisco Wireless IP Phone

7920.

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To upload firmware, follow these steps:

Procedure

Step 1 To log in, from the menu bar, choose Connection > Login. Step 2 Enter the username and password. See “Logging In” section on page 4-11. Step 3 Choose Connection > Upload Firmware Image. Step 4 Enter or select the firmware image filename and path that you want to upload. Step 5 After the firmware image is uploaded, the Cisco Wireless IP Phone 7920 will

reboot automatically, and the history log records the event.

Step 6 You need to log in again to continue configuring the Cisco Wireless

Phone 7920 with the Configuration Utility.

Overview of the Application Windows

uploading firmware image

Caution Be sure that the firmware image version in Cisco CallManager is the same as the

firmware version that you uploaded to the phone. If the firmware version is different in the Cisco CallManager server, the next time the phone connects to Cisco downloaded from Cisco CallManager.

Resetting to Factory Default

When you restore the settings to factory default values, all the settings in the Cisco Wireless IP Phone 7920 are changed to the original settings, including Call History, and Profiles settings. All Speed Dial settings are removed; however, the data stored in the Phone Book is preserved.

To restore the default settings, follow these steps:

Procedure

Step 1 From the menu bar, choose Connection > Restore to Factory Default. Step 2 Click Ye s to confirm that you wish to restore to defaults.



CallManager, the phone gets that firmware version

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Overview of the Application Windows

Step 3 After the factory default settings are restored, the Cisco Wireless IP Phone 7920

powers down automatically.

Step 4 You must reconfigure your custom network settings by using the Phone Profile

window. See

“Configuring a Network Profile” section on page 18 for more

information.

Related Topics

• Using the Configuration Wizard, page 4-14

• Phone Profile Window, page 4-16

Using the Configuration Wizard

Chapter 4 Using the Cisco 7920 Configuration Utility

For administrators who are new to configuring Cisco Wireless IP Phones, the Configuration Wizard provides step-by-step guidance and additional information about the various network and phone settings.

To begin using the wizard, follow these steps:

Procedure

Step 1 To access the Configuration Wizard, choose Edit > Configuration Wizard.

The Configuration Wizard window displays on top of the Phone Profile window, as shown in

Step 2 From the Configuration Wizard main page, choose one of these phone

Figure 4-2.

configuration categories:

• Network Profile

• Phone Settings

• User Profile

• Phone Lock Password

• Phone Book

• Speed Dial

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