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Cisco Unified IP Phone 7900 Series

Cisco Unified Wireless IP Phone 7920 Release Notes for Firmware 3.01 for Cisco Unified CallManager 5.0, 4.2, 4.1, 4.0, 3.3

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Table Of Contents

Cisco Unified Wireless IP Phone 7920 Release Notes for Firmware Release 3.01

Contents

Related Documentation

New and Changed Features

New and Changed Features in Firmware Release 3.0

EAP-FAST Security Feature

Cisco Unified Wireless IP Phone 7920 Localization

Cisco Unified Wireless IP Phone 7920 for Australia and New Zealand

Battery Life Improvement for Out of Range

Cisco Unified CallManager Release 4.1 Phone Features

Cisco Unified CallManager Release 4.2 Phone Features

Cisco Unified CallManager Release 5.0 Phone Features

Voice Quality Metrics

Phone Web Page

Headset Ring

Automatic Keypad Lock

Site Survey Screen Changes

Cisco 7920 Configuration Utility Changes

New and Changed Features in Firmware Release 3.01

Cisco Unified Wireless IP Phone 7920 Localization

Phone Book Changes

Cisco Unified CallManager Product Specific Configuration Changes

Phone Alert Changes for XML Applications

Support for Vibrate Feature with XML Applications

Idle Phone Battery Life Improvements

UDI Information

Incoming Call Alert Options

Roaming Threshold Changes

Off-Hook Flash Feature

Installation Notes

Installing the New Firmware Image

Using the Cisco Unified Wireless IP Phone 7920 with Cisco Unified CallManager Express

Important Notes

Reducing the Holdoff Time for TKIP Countermeasure Mode

Regulatory Domains for Cisco Unified Wireless IP Phone 7920

Cisco Unified CallManager Unit License

Supported Access Points

Caveats

Open Caveats

Resolved Caveats

Obtaining Documentation

Cisco.com

Product Documentation DVD

Ordering Documentation

Documentation Feedback

Cisco Product Security Overview

Reporting Security Problems in Cisco Products

Obtaining Technical Assistance

Cisco Technical Support & Documentation Website

Submitting a Service Request

Definitions of Service Request Severity

Obtaining Additional Publications and Information


Cisco Unified Wireless IP Phone 7920 Release Notes for Firmware Release 3.01


October 2006

Use these Release Notes with the cmterm_7920.4.0-03-01 image for the Cisco Unified Wireless IP Phone 7920 running with Cisco Unified CallManager Versions 5.0, 4.2, 4.1, 4.0, or 3.3(4) and later.

Contents

These release notes describe important information and known problems for this release of the Cisco Unified Wireless IP Phone 7920. These release notes provide the following information:

Related Documentation

New and Changed Features

Installation Notes

Important Notes

Caveats

Obtaining Documentation

Documentation Feedback

Cisco Product Security Overview

Obtaining Technical Assistance

Obtaining Additional Publications and Information

Related Documentation

Cisco Unified Wireless IP Phone 7920 Guide for Cisco Unified CallManager 4.0—Provides descriptions of phone tasks for the wireless IP Phone user. Refer to this guide at this link:

http://www.cisco.com/univercd/cc/td/doc/product/voice/c_ipphon/english/wip7920/user/index.htm

Cisco Unified Wireless IP Phone 7920 Administrator Guide for Cisco Unified CallManager—Provides instructions for configuring phone services and directories at this link:

http://www.cisco.com/univercd/cc/td/doc/product/voice/c_ipphon/english/wip7920/
7920adm/index.htm

For more information about the Cisco Unified Wireless IP Phone 7920, refer to the following publications available at this URL: http://www.cisco.com/univercd/cc/td/doc/product/voice/c_ipphon/english/wip7920/index.htm:

Cisco Unified Wireless IP Phone 7920 Accessory Guide

Cisco Unified Wireless IP Phone 7920 Design and Deployment Guide

Regulatory and Compliance Information for the Cisco Unified Wireless IP Phone 7920

For information about configuring the Cisco Unified Wireless IP Phone 7920 in Cisco Unified CallManager, refer to the following publications for your version of Cisco Unified CallManager at this URL:

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

Cisco Unified CallManager Administration Guide

Cisco Unified CallManager System Guide

Cisco Unified CallManager Features and Services Guide

Cisco IP Telephony Local Installer

New and Changed Features

These sections describe new features and changes for the 3.0 and 3.01 firmware releases for the Cisco Unified Wireless IP Phone 7920.

New and Changed Features in Firmware Release 3.0

The new features and changes for the Cisco Unified Wireless IP Phone 7920 in firmware release 3.0 include:

EAP-FAST Security Feature

Cisco Unified Wireless IP Phone 7920 Localization

Cisco Unified Wireless IP Phone 7920 for Australia and New Zealand

Battery Life Improvement for Out of Range

Cisco Unified CallManager Release 4.1 Phone Features

Cisco Unified CallManager Release 4.2 Phone Features

Cisco Unified CallManager Release 5.0 Phone Features

Voice Quality Metrics

Phone Web Page

Headset Ring

Automatic Keypad Lock

Site Survey Screen Changes

Cisco 7920 Configuration Utility Changes

EAP-FAST Security Feature

To provide more secure authentication in the wireless network, the Cisco Unified Wireless IP Phone 7920 now supports Extensible Authentication Protocol-Flexible Authentication via Secure Tunneling (EAP-FAST). You can use either WEP or Temporal Key Integrity Protocol (TKIP) encryption when using EAP-FAST.

A client server security architecture, EAP-FAST encrypts EAP transactions within a Transport Level Security (TLS) tunnel. The tunnel is based on Protected Access Credentials (PAC) for more secure authentication between the client and the RADIUS server.


NoteThe default expiration for a PAC is one week in the Cisco Access Control Server (ACS). If the phone has an expired PAC, it will take approximately 20 seconds longer to authenticate with the RADIUS server while the phone gets a new PAC.

If you were using LEAP prior to upgrading to firmware release 3.01, be aware that EAP mode may change to EAP-FAST after upgrading the firmware when EAP-FAST is enabled on the RADIUS server. With firmware release 3.01, the default setting for EAP mode is Auto. When using the Auto setting for EAP mode, EAP-FAST has precedence over LEAP.

The Cisco Unified Wireless IP Phone 7920 supports only automatic PAC provisioning.


If using EAP-FAST with Cisco Airespace technology, you must increased the EAP session 802.1x timeout to at least 20 seconds to insure that the phone gets the PAC credentials successfully.

To change the session timeout on the Cisco Airespace AP. follow these steps:

Procedure


Step 1 SSH or Telnet to Airespace controller(s.)

Step 2 Type "config advanced eap request-timeout 20".

Step 3 Type "save config".

Step 4 Type "y" to confirm.


If the Cisco Unified Wireless IP Phone 7920 firmware is downgraded to 2.0 or earlier and you are using EAP-FAST for authentication, the phone will not be able to authenticate. Firmware Release 2.0 does not support EAP-FAST, so you must use LEAP as your authentication method with earlier releases and enable it on the Cisco ACS.

For more information about configuring and using the EAP-FAST feature, refer to "Overview of the Wireless Network" chapter in the Cisco Unified Wireless IP Phone 7920 Administration Guide.

Cisco Unified Wireless IP Phone 7920 Localization

Release 3.0 firmware provides these translated and localized versions of the phone:

English

French

German

Japanese

Norwegian

Prior to upgrading to firmware release 3.0, download the locale-specific version of the Cisco Unified CallManager Locale Installer. You can find locale-specific versions of the Cisco Unified CallManager Locale Installer at http://www.cisco.com/kobayashi/sw-center/telephony/callmgr/locale-installer.shtml.

You must install the locale-specific version of the Cisco Unified CallManager Locale Installer on every Cisco Unified CallManager server in the cluster. Installing the locale installer ensures that you have the latest translated text, user and network locales, and country-specific phone tones available for the Cisco Unified IP Phones.

When running Cisco Unified CallManager Release 4.1 and later, refer to Using the Cisco Unified IP Telephony Locale Installer for Cisco Unified CallManager for your Cisco Unified CallManager release.

When running Cisco Unified CallManager Releases 5.0 and later, refer to the "Locale Installation" section in the Cisco IP Telephony Platform Administration Guide.


Note After modifying the user locale on the Cisco Unified Wireless IP Phone 7920, you must power cycle the phone.


Cisco Unified Wireless IP Phone 7920 for Australia and New Zealand

A version of the Cisco Unified Wireless IP Phone 7920 is now available for the Australia and New Zealand market. To comply with Australia and New Zealand requirements, this model (CP-7920-AU-K9) has a separate buzzer to ring the phone. The buzzer is supported with Version 3.01 firmware.

Because the phone rings only through the buzzer, other ring tones are not supported. All tones, including warning tone, play the same sound. The phone setting, Ring Tone Output, is not applicable to the Australia/New Zealand version of the phone.

The Cisco recommended headset (ear bud) does not comply with Australia and New Zealand requirements; therefore, this headset is not orderable for these regions. Other headsets are not qualified for use with the Cisco Unified Wireless IP Phone 7920.

For more information, refer to the Cisco Unified Wireless IP Phone 7920 Version 3.0 Data Sheet at:

http://www.cisco.com/en/US/products/hw/phones/ps379/products_data_sheet09186a00801739bb.html

Battery Life Improvement for Out of Range

When the Cisco Unified Wireless IP Phone 7920 goes outside of the wireless LAN range, the phone enters a power save mode that reduces scanning. The reduction in scanning can help preserve battery life.

After returning to the coverage area, the user can reconnect to the wireless LAN faster by pressing the Answer/Send (green key). The phone immediately scans all channels and attempts to reconnect to the wireless LAN.

Cisco Unified CallManager Release 4.1 Phone Features

The Cisco Unified Wireless IP Phone 7920 now supports this feature available with Cisco Unified CallManager, Release 4.1:

Pickup Group enhancements that include the OPickUp softkey for accessing associated pickup group calls

The auto-pickup system parameter that allows users to immediately connect to a call ringing in their pickup group.

Cisco Unified CallManager Release 4.2 Phone Features

The Cisco Unified Wireless IP Phone 7920 now supports these phone features available with Cisco Unified CallManager Release 4.2:

Pickup Notification Enhancements

This new feature allows users to receive an audio and/or visual alert when a call rings on a phone in pickup groups in which they are a member. For multiple line phones, the alert is available for pickup groups associated with the primary line only.

You can configure these notification parameters in the Call Pickup Group Configuration window:

Type of notification (audio, visual, both, or neither)

Content of the visual notification message (called party identification, calling party identification, both, or neither)

Number of seconds delay between the time the call comes into the original called party and the notification to the rest of the call pickup group members

You can configure the type of audio notification that is provided when a phone is idle or in use in the Directory Number Configuration window.

Log Out of Hunt Groups

Logging out of hunt groups allows users to block incoming hunt group calls when they are away from the phone. Use the HLog softkey to log out of the hunt groups or to log back in.


Note Directed Call Park feature is not supported at this time.


Cisco Unified CallManager Release 5.0 Phone Features

The Cisco Unified Wireless IP Phone 7920 now supports the presence feature available with Cisco Unified CallManager, Release 5.0 by providing the busy lamp field (BLF) speed-dial feature. Users can determine the state of a phone line that is associated with a speed-dial number on their phone screen. Icons next to the phone screen show these presence states:

Busy

Idle

Not available


Note To make these new features available to Cisco Unified Wireless IP Phone 7920 users, you must upgrade your Cisco Unified CallManager system with the latest DevPack patch for your release of Cisco Unified Callmanager. See the "Installing the New Firmware Image" section.


Voice Quality Metrics

Administrators can configure the Cisco Unified Wireless IP Phone 7920 to collect call diagnostics and voice quality metrics by setting the Call Diagnostics Enabled and CDR flag to True in the Cisco Unified CallManager Service Parameters.

You can view the metrics to monitor voice quality and troubleshoot network problems by using the Call Statistics screen on the phone. The Call Statistics screen on the phone displays counters, statistics, and voice quality metrics in the following ways:

During call—You can view the call information by displaying the Call Statistics screen.

After the call—You can view the call information captured during the last call by displaying the Call Statistics screen.

To access the Call Statistics screen during the call or after the call, press Menu > Phone Settings > Phone Status > Call Statistics.


Note You can remotely view the call statistics information by using a web browser to access the Phone web page.


To measure the voice quality of calls that are sent and received within the network, Cisco Unified IP Phones use statistical metrics that are based on concealment events.

To use the metrics for monitoring voice quality, record the typical scores under normal conditions of zero packet loss, and use the metrics as a baseline for comparison.

Phone Web Page

To remotely monitor the Cisco Unified Wireless IP Phone 7920, administrators can use a browser to view the phone web page that displays the following:

Device Information

Network Configuration

Network Statistics

Call Statistics

Wireless Information

For instructions to access the phone web page and details about this information, refer to the "Monitoring the Cisco Unified Wireless IP Phone Remotely" chapter in the Cisco Unified Wireless IP Phone 7920 Administration Guide.

Headset Ring

The Cisco Unified Wireless IP Phone 7920 has the ability to pass the ring tone to the headset. To change the ring tone output setting, choose Menu > Phone Settings > Ring Tones > Output. The choices are:

Speaker

Headset

By default, the ring tone output is sent to the speaker.

Automatic Keypad Lock

Users can set their phone to automatically lock the keypad after a time interval. To set the auto lock feature, choose Menu > Phone Settings > Auto Keylock and select one of these intervals:

Off

Auto 15 seconds

Auto 30 seconds

Auto 60 seconds

To unlock the keypad, press and hold the # key, then select OK to confirm.

By default, the auto keylock is off.

The auto keylock feature is enabled only when the phone is idle and on the main screen.

Site Survey Screen Changes

The Site Survey screen in the phone has been updated to include the following new information:

The last octet of the MAC address displays for each access point (AP)

The SSID for the associated AP is at the bottom of the screen

The Details screen displays the host name for each AP

Access the Site Survey screen by choosing Menu > Network Config > Site Survey.

For more information about the Site Survey screen, refer to the "Verifying the Wireless Network Configuration on the Cisco Unified Wireless IP Phone" in the Cisco Unified Wireless IP Phone 7920 Administration Guide.

Cisco 7920 Configuration Utility Changes

The Cisco 7920 Configuration Utility, Release 3.0 supports the new features in Cisco Unified Wireless IP Phone 7920 firmware release 3.0 and 3.01.

For more information, refer to the "Using the Cisco 7920 Configuration Utility," chapter in the Cisco Unified Wireless IP Phone 7920 Administration Guide.

New and Changed Features in Firmware Release 3.01

The new features and changes for the Cisco Unified Wireless IP Phone 7920 in firmware release 3.01 include:

Cisco Unified Wireless IP Phone 7920 Localization

Phone Book Changes

Cisco Unified CallManager Product Specific Configuration Changes

Phone Alert Changes for XML Applications

Support for Vibrate Feature with XML Applications

UDI Information

Incoming Call Alert Options

Roaming Threshold Changes

Off-Hook Flash Feature

Cisco Unified Wireless IP Phone 7920 Localization

Release 3.01 provides these additional translated and localized versions of the phone:

Dutch

Danish

Finnish

Italian

Russian

Spanish

Swedish

Prior to upgrading to firmware release 3.01, download the locale-specific version of the Cisco Unified CallManager Locale Installer and configure the languages in Cisco Unified CallManager. For more information, see "Cisco Unified Wireless IP Phone 7920 Localization" section.

Phone Book Changes

When resetting the Cisco Unified Wireless IP Phone 7920 back to factory defaults, all the previously configured Phone Book entries are now erased. This saves the administrator time when moving a wireless IP phone from one user to another, because the administrator no longer has to delete each individual Phone Book entry.

Cisco Unified CallManager Product Specific Configuration Changes

The Phone Configuration page in Cisco Unified CallManager Administration includes these additions to the Product Specific Configuration section for the Cisco Unified Wireless IP Phone 7920:

Coverage Warning—This setting controls whether an idle phone that is no longer within the service coverage area, can give an audible beep tone. Default setting is Off.


Note When a user is on a call and travels out of the coverage area, the phone always provides a beep tone.


Cisco Discovery Protocol—This setting controls whether CDP packets are sent from the phone. Default setting is Enabled.

Web Access—This setting controls whether the web server is accessible for access to remote monitoring. Default setting is Enabled.

Phone Alert Changes for XML Applications

Users can now set how many times an alert plays when an XML application sends an alert tone to a phone user. Under the Phone Settings menu, a new submenu called "Alert Replay," allows a user to set the number of replays for the alert tone. If set to 9, the alert tone plays 9 times. Default setting is 1.

To change the alert replay, follow these steps:

Procedure


Step 1 Choose Menu > Phone Settings > Alert Replay.

Step 2 Press Edit and enter a number from 0 to 9. (The default setting is 1.)

Step 3 Press OK to save the change.

Step 4 Press Back to return to the main menu.


Users can also set the volume of the alert when an XML application sends an alert tone to a phone user.

To change the alert volume, follow these steps:

Procedure


Step 1 Choose Menu > Profiles > User Profiles> (profile name).

Step 2 Select Alert Volume.

Step 3 Press the right arrow to increase the volume or the left arrow to decrease the volume.

Step 4 Press Back to return to the main menu.


Support for Vibrate Feature with XML Applications

With firmware release 3.01, the Cisco Unified Wireless IP Phone 7920 can now receive a URI message from a third party XML application that activates the vibrate device on the phone. You can use these parameters to customize the vibration sequence:

Vibrate Duration—Sets the vibrate-on interval in milliseconds

Silence Duration—Sets the vibrate-off interval in milliseconds

Count—Sets the number of times to repeat the vibrate on/off sequence

Syntax for the vibrate URI is:

Vibrate:[{vibrateDuration}:{silenceDuration}:{count}]

Idle Phone Battery Life Improvements

Cisco Unified Wireless IP Phone 7920 Firmware Release 3.01 includes enhancements to maximize the battery life when the phone is idle.

UDI Information

UDI information is now available on Cisco Unified Wireless IP Phone 7920 phone in the Phone Settings menu.

To view the UDI information, follow these steps:

Procedure


Step 1 Choose Menu > Phone Settings > Phone Status.

Step 2 Select UDI to see this information:

Product number (PID)

Vendor number (VID)

Serial number of the phone

Step 3 Press Back to return to the main menu.


Incoming Call Alert Options

Users can now control their incoming call alerts when on an active call. By using a new menu option called Ring Settings, users can configure their phone to "Beep Only" when they are on an active call and receiving a new call.

If set to "CCM Setting," the phone uses the line settings option that is configured in Cisco Unified CallManager Administration to alert them of an incoming call. These settings include:

Ring

Ring Once

Beep Only

Flash Only

Disable

To change the ring setting option, follow these steps:

Procedure


Step 1 Choose Menu > Phone Settings > Ring Tones > Ring Setting.

Step 2 Select one of these options:

Beep Only (This is the default setting.)

CCM Setting

Step 3 Press Back to return to the main menu.


Roaming Threshold Changes

To accommodate some locations that require more aggressive roaming parameters, new options are available in the "Roaming" hidden menu.

For information about accessing the hidden menus, refer to the Cisco Unified Wireless IP Phone 7920 Administration Guide.

To change the roaming algorithm, follow these steps:

Procedure


Step 1 Activate the hidden phone menus.

Step 2 Choose Menu >Network Config> 802.11b Configuration > Wireless Settings > Roaming.

Step 3 Select Roaming Algorithm and make one of these choices:

Automatic—Keeps current roaming mechanism where the wireless IP phone roams using dynamic thresholds depending on the current RSSI.

Static—Press Edit and enter customized settings for these new parameters:

Roam Holdoff—Sets the hold off time for roaming events to prevent back-to-back roaming.

RSSI Thld—Sets the minimum acceptable signal threshold to which the wireless IP phone can roam.

RSSI Diff Thld—Sets the signal difference threshold between the current AP and the next AP to which the wireless IP phone can roam.

Step 4 Press Back to return to the main menu.


Off-Hook Flash Feature

The Cisco Unified Wireless IP Phone 7920 phone now supports the off-hook flash feature through a new hidden menu called Off-Hook. If the Off-Hook setting is enabled on the phone, when the user presses the Answer/Send key without dialing a number, the phone sends an SCCP "Off-Hook" message to Cisco Unified CallManager. The user no longer has access to the last number redial list of phone numbers which is the standard function when pressing the Answer/Send button.

For information about accessing the hidden menus, refer to the Cisco Unified Wireless IP Phone 7920 Administration Guide.

To change the off-hook option, follow these steps:

Procedure


Step 1 Activate the hidden phone menus.

Step 2 Choose Menu > Phone Settings > Off-Hook.

Step 3 Select Off-Hook

Step 4 Select one of these choices:

Disable—Provides the list of the last numbers dialed when the user presses the Answer/Send button. (This is the default setting.)

Enable—Sends an SCCP "Off-Hook" message to Cisco Unified CallManager.

Step 5 Press Back to return to the main menu.

Installation Notes

This section provides information about using the Cisco Unified Wireless IP Phone 7920 with Cisco Unified CallManager 5.0, 4.2, 4.1, 4.0, 3.3(4), and later:

Installing the New Firmware Image

Using the Cisco Unified Wireless IP Phone 7920 with Cisco Unified CallManager Express

Installing the New Firmware Image

Before using the Cisco Unified Wireless IP Phone 7920 with Cisco Unified CallManager, you must install the version 3.01 firmware image on all Cisco Unified CallManager systems that run TFTP service. To load the version 3.01 firmware image for the Cisco Unified Wireless IP Phone 7920, follow these steps:


Note To make the new features available to Cisco Unified Wireless IP Phone 7920 users, you must upgrade your Cisco Unified CallManager system with the latest DevPack patch for your release of Cisco Unified CallManager. You can download the latest DevPack patch with the new CSV and XML schema at this URL:
http://www.cisco.com/public/sw-center/sw-voice.shtml


Procedure


Step 1 Go to this URL:

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

Step 2 Click one of the following hyperlinks, and follow the prompts to download the firmware:

For Cisco Unified CallManager release 4.2 and earlier:
cmterm-7920-sccp.3-0-1.exe

For Cisco Unified CallManager release 5.0:
cmterm-7920-sccp.3-0-1.cop

For Cisco Unified CallManager release 5.0(4) and later:
cmterm-7920-sccp.3-0-1.cop.sgn

Step 3 Go back to the URL shown in Step 1, click the following hyperlink and follow the prompts to download the Readme file, which contains installation instructions for the corresponding firmware:

cmterm-7920-sccp.3-0-1.Readme.htm—For Cisco Unified CallManager 4.2 and earlier and Cisco Unified CallManager 5.0

Step 4 Follow the instructions in the Readme file to install the firmware.



NoteTo downgrade firmware to version 1.09 or earlier, you must use the Cisco 7920 Configuration Utility to perform the downgrade.

If the phone firmware is earlier than version 1.03 or the phone is configured in Cisco Unified CallManager as an IP Phone 7960 (releases prior to 3.3(3)SR1), you also need the os7920.txt file which is installed with the firmware.


Using the Cisco Unified Wireless IP Phone 7920 with Cisco Unified CallManager Express

If you are using the Cisco Unified Wireless IP Phone 7920 with Cisco Unified CallManager Express 3.1 or later, you can download the version 3.01 firmware image file cmterm_7920.4.0-03-01.bin from the software download center at the following URL:

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


NoteCisco CME versions 3.1 and later support the Cisco 7920 phone type and do not require the phone load image helper file.

If the phone firmware is earlier than version 1.03 or the phone is configured in Cisco Unified CallManager Express as an IP Phone 7960 (releases prior to 3.1) you also need the os7920.txt file. You can create this file by using a text editor such as Notepad. Create a new file with the name, os7920.txt and enter the firmware image name: cmterm_7920.4.0-03-01.


To install the version 3.01 firmware with Cisco Unified CallManager Express, you must manually copy the firmware image file cmterm_7920_4.0-03-01.bin to the Cisco Unified CallManager Express TFTP server (router flash) and enable it for TFTP. Update the 7920 load name to cmterm_7920.4.0-03-01.

For information about this procedure, refer to the "Setting Up Phones" chapter in the Cisco Unified CallManager Express Administration Guide for your version of Cisco CME at this URL:

http://www.cisco.com/en/US/products/sw/voicesw/ps4625/tsd_products_support_series_home.html

Important Notes

This section provides general information about using and supporting the Cisco Unified Wireless IP Phone 7920 in your system.

Reducing the Holdoff Time for TKIP Countermeasure Mode

Regulatory Domains for Cisco Unified Wireless IP Phone 7920

Cisco Unified CallManager Unit License

Supported Access Points

Reducing the Holdoff Time for TKIP Countermeasure Mode

The Cisco Unified Wireless IP Phone 7920 may transmit a message integrity check (MIC) error to the access point when using TKIP. If the access point receives two MIC errors within 60 seconds, then the access point enters Countermeasure mode in which all associated TKIP clients are de-authenticated for the duration of the Countermeasure Holdoff time.

You can reduce the Holdoff time for TKIP Countermeasure mode to less than 60 seconds (the default value) on the access point.

Use this command on your access point configuration:

Interface dot11radio 0
Countermeasure tkip hold-time seconds

where seconds is the holdoff time. Suggested values are from 0 to 3.

Regulatory Domains for Cisco Unified Wireless IP Phone 7920

Be aware that you can use a Cisco Unified Wireless IP Phone 7920 only within the region in which it is purchased. The Cisco Unified Wireless IP Phone 7920 might not function properly in another region. The Cisco Unified Wireless IP Phone 7920 is manufactured and sold for specific regulatory domains. These domains, such as North America and Japan, have regulations that control the radio frequency (RF) channels and transmission power that are available for wireless phones.

You can determine the regulatory domain for your phone by accessing the Domain menu from Phone Settings. Choose Menu > Phone Settings > Phone Status > Domain. A check mark displays next to one of these settings as shown in Table 1.

Table 1 Supported Regulatory Domains

Regulatory Domain Number
Geographic Region

1

North America, Australia, New Zealand

2

Europe

3

Japan

7

Asian and Pacific


Cisco Unified CallManager Unit License

You need a Cisco Unified CallManager unit license for each Cisco Unified Wireless IP Phone 7920. Depending on the bundle that you order, you might need to order a license. For more information, refer to Cisco Unified Wireless IP Phone 7920 Data sheet at this URL:

http://www.cisco.com/en/US/products/hw/phones/ps379/products_data_sheet09186a00801739bb.html

Supported Access Points

The Cisco Unified Wireless IP Phone 7920 supports Cisco Aironet Access Points (APs) that can run Cisco IOS in autonomous mode and APs that run in lightweight mode with lightweight access point protocol (LWAPP) and using a wireless LAN controller. Table 2 lists the supported AP models and their operation mode in the WLAN.

Table 2 Supported Access Points and Modes

Access Point Models
Autonomous Mode
Lightweight Mode

Cisco Aironet AP 350

Yes

No

Cisco Aironet AP 1100

Yes

Yes

Cisco Aironet AP 1130

Yes

Yes

Cisco Aironet AP 1200

Yes

Yes

Cisco Aironet AP 1240

Yes

Yes

Cisco Aironet AP 1300

Yes

Yes

Cisco 1000 Series Lightweight AP

No

Yes



Wi-Fi compliant APs that are manufactured by third-party vendors should function with the Cisco Unified Wireless IP Phone 7920, but might not support key features such as Dynamic Transmit Power Control (DTPC), ARP-caching, LEAP/EAP-FAST, or QBSS.


Note Voice over the wireless LAN (VoWLAN) does not currently support MESH technology such as Cisco Aironet 1500 Series Lightweight Outdoor Mesh Access Points.


Caveats

This section provides information about the following:

Open Caveats

Resolved Caveats

Known problems (bugs) are graded according to severity level. These release notes contain descriptions of:

All severity level 1 or 2 bugs.

Significant severity level 3 bugs.

You can search for problems by using the Cisco Software Bug Toolkit. To access Bug Toolkit, you need the following items:

Internet connection

Web browser

Cisco.com user ID and password

To use the Software Bug Toolkit, follow these steps:

Procedure


Step 1 To access the Bug Toolkit, go to http://www.cisco.com/pcgi-bin/Support/Bugtool/launch_bugtool.pl.

Step 2 Log on with your Cisco.com user ID and password.

Step 3 Click the Launch Bug Toolkit hyperlink.

Step 4 To look for information about a specific problem, enter the bug ID number in the "Enter known bug ID" field and click Search.


Open Caveats

Table 3 describes the problems that are known to exist in the firmware release 3.01 for the Cisco Unified Wireless IP Phone 7920.

Table 3 Open Caveats for Cisco Unified Wireless IP Phone 7920 in Firmware Release 3.01 

Identifier
Summary and Bug Toolkit Link

CSCsb03081

The Cisco Unified Wireless IP Phone 7920 might cause Temporal Key Integrity Protocol (TKIP) replays on the access point (AP).

http://www.cisco.com/pcgi-bin/Support/Bugtool/onebug.pl?bugid=CSCsb03081

CSCsb09599

The Cisco Unified Wireless IP Phone 7920 is corrupting the MIC check sums sent to the AP.

http://www.cisco.com/pcgi-bin/Support/Bugtool/onebug.pl?bugid=CSCsb09599

CSCsd41270

The Cisco Unified Wireless IP Phone 7920 unexpectedly sends SCCP packets to register with the gateway.

http://www.cisco.com/pcgi-bin/Support/Bugtool/onebug.pl?bugid=CSCsd41270

CSCsd62018

Sometimes there is no ARP entry for the default gateway.

http://www.cisco.com/pcgi-bin/Support/Bugtool/onebug.pl?bugid=CSCsd62018


Resolved Caveats

Table 4 lists the resolved problems in firmware release 3.01 for the Cisco Unified Wireless IP Phone 7920.

Table 4 Resolved Caveats for Cisco Unified Wireless IP Phone 7920 in Firmware Release 3.01 

Identifier
Summary

CSCed10265

Cisco Unified Wireless IP Phone 7920 QBSS allows more than seven calls using G.711 when using Redial.

CSCed64286

The audio level may drop during a call if both parties talk at the same time.

CSCee91152

The ring settings in Cisco Unified CallManager do not work on the Cisco Unified Wireless IP Phone 7920.

CSCsd12993

If "Always use the primary line" is enabled, all outbound calls will only use the primary line.

CSCsd23100

User cannot end the call when pressing the End Call key.

CSCsd33059

The Cisco Unified Wireless IP Phone 7920 does not use the Cisco Unified CallManager DSCP settings.

CSCsd67282

Cisco Unified Wireless IP Phone 7920 sends the same session ID after first connection.

CSCsd72332

After logging on to Extension Mobility, the locale is not updated

CSCsd81720

The French, German, and Norwegian locales fail to load on the Cisco Unified Wireless IP Phone 7920

CSCsd83895

When using the HLog softkey, the Cisco Unified Wireless IP Phone 7920 failed to log in to hunt group.

CSCse03130

When using Fast Dial service, the user cannot dial the number with the Send button.

CSCse07603

When text is pushed to the phone, the Cisco Unified Wireless IP Phone 7920 stops sending multicast.

CSCse11200

There can be up to 100 milliseconds delay between RTP packets when scanning the current channel.

CSCse48844

The Cisco Unified Wireless IP Phone 7920 cannot use a custom locale name for the TFTP path.

CSCse57669

When call forward all is enabled on the Cisco Unified Wireless IP Phone 7920, the call park number is not displayed.

CSCse58658

When receiving RTP through an XML push, the current call gets put on hold.

CSCse70227

The Cisco Unified Wireless IP Phone 7920 does not send an Acknowledgement (ACK) when told to restart or reset.

CSCse90042

When the Cisco Unified Wireless IP Phone 7920 is put on hold, it cannot play a holding beep tone.

CSCsf04685

When the Cisco Unified Wireless IP Phone 7920 receives many beacons, it can become unresponsive.

CSCsf06405

The Cisco Unified Wireless IP Phone 7920 can lock up after receiving an Inter-Access Point Protocol (IAPP) response packet from an Airespace AP version 4.0.

CSCsf10362

The Cisco Unified Wireless IP Phone 7920 does not use the winCharSet variable information in the HTTP header.

CSCsf10367

The Chirp 1 tone is not loud enough in some environments.

CSCsf13332

When roaming with WPA authentication, the Cisco Unified Wireless IP Phone 7920 can get an IP config failure.

CSCsf22418

Sometimes the Cisco Unified Wireless IP Phone 7920 is in a state where the user cannot hear audio.

CSCsf22421

UTF-8 characters are not translated correctly.


Obtaining Documentation

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Cisco.com

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Reporting Security Problems in Cisco Products

Cisco is committed to delivering secure products. We test our products internally before we release them, and we strive to correct all vulnerabilities quickly. If you think that you have identified a vulnerability in a Cisco product, contact PSIRT:

For Emergencies only — security-alert@cisco.com

An emergency is either a condition in which a system is under active attack or a condition for which a severe and urgent security vulnerability should be reported. All other conditions are considered nonemergencies.

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Tip We encourage you to use Pretty Good Privacy (PGP) or a compatible product (for example, GnuPG) to encrypt any sensitive information that you send to Cisco. PSIRT can work with information that has been encrypted with PGP versions 2.x through 9.x.

Never use a revoked or an expired encryption key. The correct public key to use in your correspondence with PSIRT is the one linked in the Contact Summary section of the Security Vulnerability Policy page at this URL:

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The link on this page has the current PGP key ID in use.

If you do not have or use PGP, contact PSIRT at the aforementioned e-mail addresses or phone numbers before sending any sensitive material to find other means of encrypting the data.


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Cisco Technical Support provides 24-hour-a-day award-winning technical assistance. The Cisco Technical Support & Documentation website on Cisco.com features extensive online support resources. In addition, if you have a valid Cisco service contract, Cisco Technical Assistance Center (TAC) engineers provide telephone support. If you do not have a valid Cisco service contract, contact your reseller.

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Note Use the Cisco Product Identification (CPI) tool to locate your product serial number before submitting a web or phone request for service. You can access the CPI tool from the Cisco Technical Support & Documentation website by clicking the Tools & Resources link under Documentation & Tools. Choose Cisco Product Identification Tool from the Alphabetical Index drop-down list, or click the Cisco Product Identification Tool link under Alerts & RMAs. The CPI tool offers three search options: by product ID or model name; by tree view; or for certain products, by copying and pasting show command output. Search results show an illustration of your product with the serial number label location highlighted. Locate the serial number label on your product and record the information before placing a service call.


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Definitions of Service Request Severity

To ensure that all service requests are reported in a standard format, Cisco has established severity definitions.

Severity 1 (S1)—An existing network is down, or there is a critical impact to your business operations. You and Cisco will commit all necessary resources around the clock to resolve the situation.

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Severity 3 (S3)—Operational performance of the network is impaired, while most business operations remain functional. You and Cisco will commit resources during normal business hours to restore service to satisfactory levels.

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Obtaining Additional Publications and Information

Information about Cisco products, technologies, and network solutions is available from various online and printed sources.

The Cisco Product Quick Reference Guide is a handy, compact reference tool that includes brief product overviews, key features, sample part numbers, and abbreviated technical specifications for many Cisco products that are sold through channel partners. It is updated twice a year and includes the latest Cisco offerings. To order and find out more about the Cisco Product Quick Reference Guide, go to this URL:

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Internet Protocol Journal is a quarterly journal published by Cisco Systems for engineering professionals involved in designing, developing, and operating public and private internets and intranets. You can access the Internet Protocol Journal at this URL:

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