Contents

• Introduction
• Related Documentation
• Cisco Unified IP Phone 7900 Series Documentation
• Cisco Unified Communications Manager Documentation
• Cisco Unified Communications Manager Express Documentation
• Cisco Unified Wireless IP Phone 792xG Deployment Guides
• New and Changed Information
• Features Available with Firmware Release
• Cisco Unified Communications Manager Location Service Support
• PEAP With Server Validation Provisioning Enhancement
• Installation
• Install Firmware on Cisco Unified Communications Manager
• Install Firmware on Cisco Unified Communications Manager Express
• Install Bulk Deployment Utility
• Install Cisco Unified Wireless IP Phone 792xG Configuration Utility Using Wavelink Avalanche Server Console
• Important Notes
• Health-Care Environment Use
• Debug Level Impact to Voice Quality
• USB Connection Disabled After Powering Phone Off and On
• Game MIDlet Impact to Voice Quality
• Upgrade from Releases Prior to 1.4(3)
• Phone Behavior During Times of Network Congestion
• Interoperational Issues with Firefox 37.0 and Later
• Cisco Unified Communication Manager Public Keys
• Unified Communications Manager Endpoints Locale Installer
• View Caveats
• Cisco IP Phone Firmware Support Policy
• Cisco IP Phone Documentation Updates on Cisco Unified Communications Manager
• Documentation, Service Requests, and Additional Information

First Published: June 11, 2015

Introduction

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Use these release notes with the Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G.

The following table describes the individual phone requirements.

Phone	Cisco Unified Communications Manager Release	Cisco Unified Communications Manager Express Release
Cisco Unified Wireless IP Phone 7925G and 7925G-EX	5.1 and later	4.3 and later
Cisco Unified Wireless IP Phone 7926G	7.1(5) and later	8.6 and later

Related Documentation

Use the following sections to obtain related information.

Cisco Unified IP Phone 7900 Series Documentation

See the publications that are specific to your language, phone model, and Cisco Unified Communications Manager release. Navigate from the following documentation URL:

http:/​/​www.cisco.com/​c/​en/​us/​support/​collaboration-endpoints/​unified-ip-phone-7900-series/​tsd-products-support-general-information.html

Cisco Unified Communications Manager Documentation

See the Cisco Unified Communications Manager Documentation Guide and other publications that are specific to your Cisco Unified Communications Manager release. Navigate from the following documentation URL:

http:/​/​www.cisco.com/​c/​en/​us/​support/​unified-communications/​unified-communications-manager-callmanager/​tsd-products-support-series-home.html

Cisco Unified Communications Manager Express Documentation

See the publications that are specific to your language, phone model and Cisco Unified Communications Manager Express release. Navigate from the following documentation URL:

http:/​/​www.cisco.com/​c/​en/​us/​support/​unified-communications/​unified-communications-manager-express/​tsd-products-support-series-home.html

Cisco Unified Wireless IP Phone 792xG Deployment Guides

To see the Cisco Unified Wireless IP Phone 792xG Deployment Guides, navigate from the following URL:

http:/​/​www.cisco.com/​en/​US/​products/​hw/​phones/​ps379/​products_​implementation_​design_​guides_​list.html

New and Changed Information

The following sections describe the features that are new or have changed for this release.

Features Available with Firmware Release

The following sections describe the features available with the Firmware Release.

Cisco Unified Communications Manager Location Service Support

The Cisco Unified Communications Manager Location Service Support feature enables the phone to send information about the current Wi-Fi connection to the Cisco Unified Communications Manager. The Cisco Unified Communication Manager uses this information to determine location-based services.

This feature has no administration or user impact.

The feature is supported on the following phones:

• Cisco Unified Wireless IP Phone 7925G

• Cisco Unified Wireless IP Phone 7925G-EX

• Cisco Unified Wireless IP Phone 7926G

PEAP With Server Validation Provisioning Enhancement

The PEAP With Server Validation Provisioning Enhancement enables zero-touch provisioning of the wireless phones that use Protected Extensible Authentication Protocol (PEAP) with Server Validation. The enhancement installs a server certificate on the phones to validate actions.

The phone performs a TFTP get for the Server Certificate (WLANRootCA.cer) before the TFTP request for the BDU files (WLAN(MAC).xml or WLANDefault.xml). The phone first requests the file from the TFTP server. Any existing server certificates are removed. The server certificate must be in SHA-1 and DER format. After the certificate is installed, Server Validation is enabled automatically when the phone is configured to use PEAP authentication. The phone restarts after the certificate is installed.

Starting with Firmware Release 1.4(7), Server Validation cannot be configured.

This feature has no user impact.

The feature is supported on the following phones:

• Cisco Unified Wireless IP Phone 7925G

• Cisco Unified Wireless IP Phone 7925G-EX

• Cisco Unified Wireless IP Phone 7926G

Where to Find More Information

Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G Administration Guide

Installation

Use the following sections to install the firmware.

Install Firmware on Cisco Unified Communications Manager

Before You Begin

To make the Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G available in the Cisco Unified Communications Manager system, you might need to upgrade your system with the latest DevPack patch for your release of Cisco Unified Communications Manager.

Check the Readme file that is posted with the firmware version 1.4(7) for more information:

• For Cisco Unified Wireless IP Phone 7925G and 7925G-EX, the Readme file is cmterm-7925-sccp.1-4-7-3-Readme.html.

• For Cisco Unified Wireless IP Phone 7926G, the Readme file is cmterm-7926-sccp.1-4-7-3-Readme.html.

Note	The Cisco Unified Wireless IP Phone 7925G and 7925G-EX are supported with Cisco Unified Communications Manager Release 5.1 and later. The Cisco Unified Wireless IP Phone 7926G is supported with Cisco Unified Communications Manager Release 7.1(5) and later.

Before using the Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G with Cisco Unified Communications Manager, you must install the latest firmware on all Cisco Unified Communications Manager servers in the cluster.

Procedure

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Step 1	To access the firmware files, go to this URL: http:/​/​www.cisco.com/​cisco/​software/​navigator.html?mdfid=278875240&i=rp
Step 2	Log in to the Tools and Resources Download page.
Step 3	Choose the IP Telephony folder.
Step 4	Choose Unified Communications Endpoints > Cisco Unified IP Phones 7900 Series.
Step 5	Choose Cisco Unified Wireless IP Phone 7925G, or Cisco Unified Wireless IP Phone 7926G.
Step 6	Choose Skinny Client Control Protocol (SCCP) Software.
Step 7	Choose 1.4(7) under the Latest Releases folder.
Step 8	Click Download or Add to cart and follow the prompts. Select the appropriate file from the following list: Cisco Unified Wireless IP Phone 7925G and 7925G-EX: cmterm-7925-sccp.1-4-7-3.k3.cop.sgn Cisco Unified Wireless IP Phone 7926G: cmterm-7926-sccp.1-4-7-3.k3.cop.sgn
Step 9	To view the Readme file, use the Add to cart download method.
Step 10	Follow the instructions in the Readme file to install the firmware.

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Install Firmware on Cisco Unified Communications Manager Express

You must download the Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G version 1.4(7) firmware image file from the software download center.

Note	The Cisco Unified Wireless IP Phone 7925G and 7925G-EX are supported with Cisco Unified Communications Manager Express 4.3 and later. The Cisco Unified Wireless IP Phone 7926G is supported with Cisco Unified Communications Manager Express 8.6 and later.

For more information about this procedure, refer to the "Installing and Upgrading Cisco Unified CME Software" chapter in the Cisco Unified Communications Manager Express System Administrator Guide at this URL:

http:/​/​www.cisco.com/​en/​US/​products/​sw/​voicesw/​ps4625/​products_​installation_​and_​configuration_​guides_​list.html

To install the firmware, follow these steps.

Procedure

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Step 1	To access the firmware files, go to this URL: http:/​/​www.cisco.com/​cisco/​software/​navigator.html?mdfid=278875240&i=rp
Step 2	Log in to the Tools and Resources Download page.
Step 3	Choose the IP Telephony folder.
Step 4	Choose Unified Communications Endpoints > Cisco Unified IP Phones 7900 Series.
Step 5	Choose Cisco Unified IP Phone 7925G, or Cisco Unified IP Phone 7926G.
Step 6	Choose Skinny Client Control Protocol (SCCP) Software.
Step 7	Choose 1.4(7) in the Latest Releases folder.
Step 8	Click Download or Add to cart and follow the prompts. The files to download are: Cisco Unified Wireless IP Phone 7925G and 7925G-EX: cmterm-7925-sccp.1-4-7-3.zip Cisco Unified Wireless IP Phone 7926G: cmterm-7926-sccp.1-4-7-3.zip
Step 9	Extract the files from the zip file, manually copy them to the Cisco Unified Communications Manager Express TFTP server (router flash), and enable them for TFTP.

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Install Bulk Deployment Utility

To install the Bulk Deployment utility, follow these steps:

Procedure

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Step 1	To access the file, go to this URL: http:/​/​software.cisco.com/​download/​navigator.html?mdfid=280789323
Step 2	If required, log into the page.
Step 3	Choose IP Phones > Cisco Unified IP Phones 7900 Series.
Step 4	Choose Cisco Unified IP Phone 7925G or Cisco Unified IP Phone 7926G.
Step 5	Choose IP Phone Tools and Utilities > BDU Files.
Step 6	Download the Bulk Deployment Utility file to the desired location.
Step 7	To view the readme file, use the Add to cart download method.
Step 8	Double-click on the file to launch the install wizard.
Step 9	At the Welcome screen, click Next.
Step 10	Click Next to accept the default destination folder as the installation path.
Step 11	Click Install to start the installation.
Step 12	Click Finish when the installation is complete.

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Install Cisco Unified Wireless IP Phone 792xG Configuration Utility Using Wavelink Avalanche Server Console

To install the Cisco Wireless IP Phone 792xG Configuration utility, follow these steps:

Procedure

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Step 1	To access the firmware files, go to this URL: http:/​/​software.cisco.com/​download/​navigator.html?mdfid=280789323
Step 2	If required, log into the page.
Step 3	Choose IP Phones > Cisco Unified IP Phones 7900 Series.
Step 4	Choose Cisco Unified IP Phone 7925G or Cisco Unified IP Phone 7926G.
Step 5	Choose IP Phone Tools and Utilities > CU Files.
Step 6	Download the Cisco Unified Wireless IP Phone 792xG Configuration Utility for Wavelink Avalanche file to a host that is accessible to the Avalanche Console.
Step 7	To view the Readme file, use the Add to cart download method.
Step 8	Launch the Avalanche Console and connect to an Avalanche agent.
Step 9	Select Software Management > Installing Software Package from the menu.
Step 10	Enter the path for the Cisco Unified Wireless IP Phone 792xG Configuration Utility for Wavelink Avalanche file.
Step 11	Click New, and enter the Cisco Unified Wireless IP Phone 792xG Configuration Utility for Wavelink Avalanche file name.
Step 12	Follow the prompts to complete the installation.

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Important Notes

This section provides general information about using and supporting the Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G in your system.

Health-Care Environment Use

This product is not a medical device and uses an unlicensed frequency band that is susceptible to interference from other devices or equipment.

Debug Level Impact to Voice Quality

Voice quality can be impaired when you set system log trace files for higher debug levels. Set only the modules that are required when capturing trace files for a phone.

USB Connection Disabled After Powering Phone Off and On

If you power off the Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G with the USB cable connected and then power it on again, the USB connection might fail.

To enable the USB connection, unplug the USB cable from the phone and then plug it back in.

Game MIDlet Impact to Voice Quality

If you are running a Java MIDlet game application in the background during an active call, voice quality may be affected.

Upgrade from Releases Prior to 1.4(3)

If your Cisco Unified Wireless IP Phones are currently running a release prior to 1.4(3), then you must use the Trivial File Transport Protocol (TFTP) method to upgrade to release 1.4(3) or later. Once upgraded to release 1.4(3) or later, you can then upgrade to later versions using the phone's webpage either via USB or WLAN.

Phone Behavior During Times of Network Congestion

Anything that degrades network performance can affect Cisco IP Phone voice and video quality, and in some cases, can cause a call to drop. Sources of network degradation can include, but are not limited to, the following activities:

• Administrative tasks, such as an internal port scan or security scan

• Attacks that occur on your network, such as a Denial of Service attack

To reduce or eliminate any adverse effects to the phones, schedule administrative network tasks during a time when the phones are not being used or exclude the phones from testing.

Interoperational Issues with Firefox 37.0 and Later

Firefox 37.0 and later has disabled insecure TLV version fallback due to site security concerns. For more information, see https:/​/​www.mozilla.org/​en-US/​firefox/​37.0/​releasenotes.

Cisco Unified Communication Manager Public Keys

To improve software integrity protection, new public keys are used to sign cop files for Cisco Unified Communications Manager Release 10.0.1 and later. These cop files have "k3" in their name. To install a k3 cop file on a pre-10.0.1 Cisco Unified Communications Manager, consult the README for the ciscocm.version3-keys.cop.sgn to determine if this additional cop file must first be installed on your specific Cisco Unified Communications Manager version. If these keys are not present and are required, you will see the error "The selected file is not valid" when you try to install the software package.

Unified Communications Manager Endpoints Locale Installer

By default, Cisco IP Phones are set up for the English (United States) locale. To use the Cisco IP phones in other locales, you must install the locale-specific version of the Unified Communications Manager Endpoints Locale Installer on every Cisco Unified Communications Manager server in the cluster. The Locale Installer installs the latest translated text for the phone user interface and country-specific phone tones on your system so that they are available for the Cisco IP Phones.

To access the Locale Installer required for a release, access http:/​/​software.cisco.com/​download/​navigator.html?mdfid=286037605&flowid=46245, navigate to your phone model, and select the Unified Communications Manager Endpoints Locale Installer link.

For more information, see the "Locale Installer" section in the Cisco Unified Communications Operating System Administration Guide.

Note	The latest Locale Installer may not be immediately available; continue to check the website for updates.

View Caveats

You can search for caveats using the Cisco Bug Search.

Known caveats (bugs) are graded according to severity level, and can be either open or resolved.

Before You Begin

To view caveats, you need the following items:

• Internet connection

• Web browser

• Cisco.com user ID and password

Procedure

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Step 1	Perform one of the following actions: To find all caveats for this release, use this URL: https:/​/​tools.cisco.com/​bugsearch/​search?kw=*&pf=prdNm&pfVal=282359287&rls=1.4%287.,1.4%287%29DV&sb=anfr&srtBy=svr&bt=custV To find all open caveats for this release, use this URL: https:/​/​tools.cisco.com/​bugsearch/​search?kw=*&pf=prdNm&pfVal=282359287&rls=1.4%287.,1.4%287%29DV&sb=afr&srtBy=svr&bt=custV To find all resolved caveats for this release, use this URL: https:/​/​tools.cisco.com/​bugsearch/​search?kw=*&pf=prdNm&pfVal=282359287&rls=1.4%287.,1.4%287%29DV&sb=fr&srtBy=svr&bt=custV
Step 2	When prompted, log in with your Cisco.com user ID and password.
Step 3	To look for information about a specific problem, enter the bug ID number in the Search for field, then press Enter.

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Cisco IP Phone Firmware Support Policy

For information on the support policy for Cisco IP Phones, see http:/​/​www.cisco.com/​c/​en/​us/​support/​docs/​collaboration-endpoints/​unified-ip-phone-7900-series/​116684-technote-ipphone-00.html.

Cisco IP Phone Documentation Updates on Cisco Unified Communications Manager

The Cisco Unified Communications Manager Self Care Portal (Release 10.0 and later) and User Options web pages (Release 9.1 and earlier) provide links to the IP Phone user guides in PDF format. These user guides are stored on the Cisco Unified Communications Manager and are up to date when the Cisco Unified Communications Manager release is first made available to customers.

After a Cisco Unified Communications Manager release, subsequent updates to the user guides appear only on the Cisco website. The phone firmware release notes contain the applicable documentation URLs. In the web pages, updated documents display "Updated" beside the document link.

Note	The Cisco Unified Communications Manager Device Packages and the Unified Communications Manager Endpoints Locale Installer do not update the English user guides on the Cisco Unified Communications Manager.

Administrators and users should check the Cisco website for updated user guides and download the PDF files. Administrators can also make the files available to the users on their company website.

Tip	Administrators may want to bookmark the web pages for the phone models that are deployed in their company and send these URLs to their users.

Documentation, Service Requests, and Additional Information

For information on obtaining documentation, submitting a service request, and gathering additional information, see the monthly What’s New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at:

http:/​/​www.cisco.com/​c/​en/​us/​td/​docs/​general/​whatsnew/​whatsnew.html

Subscribe to the What’s New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free service and Cisco currently supports RSS Version 2.0.

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