Cisco Unified Wireless IP Phone 7921G, 7925G, 7925G-EX, and 7926G Release Notes for Firmware Release 1.4(5)SR1
Bias-Free Language
The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.
- Updated:
- October 31, 2021
Chapter: Cisco Unified Wireless IP Phone 7921G, 7925G, 7925G-EX, and 7926G Release Notes for Firmware Release 1.4(5)SR1
Cisco Unified Wireless IP Phone 7921G, 7925G, 7925G-EX, and 7926G Release Notes for Firmware Release 1.4(5)SR1
Introduction
Use these release notes with the Cisco Unified Wireless IP Phone 7921G, 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 7921G |
5.1 and later |
4.1 and later |
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
- 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
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:
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:
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:
Cisco Unified Wireless IP Phone 792xG Deployment Guides
To see the Cisco Unified Wireless IP Phone 792xG Deployment Guides, navigate from the following URL:
New and Changed Information
The following sections describe the features that are new or have changed for this release.
Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G Release 1.4(5)SR1 Support
The following table lists the phone hardware revisions that require this release. These hardware revisions cannot be downgraded to a firmware release lower than 1.4(5)SR1.
Phone |
Revision |
|---|---|
Cisco Unified Wireless IP Phone 7925G |
4.0 |
Cisco Unified Wireless IP Phone 7925G-EX |
4.0 |
Cisco Unified Wireless IP Phone 7926G |
5.0 |
 Note | Firmware Release 1.4(5)SR1 can also be installed on the Cisco Unified Wireless IP Phone 7921 and previous hardware revisions of the Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G. |
Installation
Use the following sections to install the firmware.
- Install 1.4(5)SR1 on Cisco Unified Communications Manager
- Install 1.4(5)SR1 on Cisco Unified Communications Manager Express
- Install Bulk Deployment Utility
- Install Cisco Unified Wireless IP Phone 792xG Configuration Utility Using Wavelink Avalanche Server Console
Install 1.4(5)SR1 on Cisco Unified Communications Manager
To make the Cisco Unified Wireless IP Phone 7921G, 7925G, 7925G-EX, and 7926G available in the Cisco Unified Communications Manager system, you might need to upgrade your system with the latest Dev Pack patch for your release of Cisco Unified Communications Manager.
Check the Readme file that is posted with the firmware version 1.4(5)SR1 for more information:
For Cisco Unified Wireless IP Phone 7921G, the Readme file is cmterm-7921-sccp.1-4-5SR1-3-Readme.html.
For Cisco Unified Wireless IP Phone 7925G and 7925G-EX, the Readme file is cmterm-7925-sccp.1-4-5SR1-3-Readme.html.
For Cisco Unified Wireless IP Phone 7926G, the Readme file is cmterm-7926-sccp.1-4-5SR1-3-Readme.html.
Before using the Cisco Unified Wireless IP Phone 7921G, 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.
| 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 . |
| Step 4 | Choose Cisco Unified Wireless IP Phone 7921G, Cisco Unified Wireless IP Phone 7925G, or Cisco Unified Wireless IP Phone 7926G. |
| Step 5 | Choose Skinny Client Control Protocol (SCCP) Software. |
| Step 6 | Choose 1.4(5)SR1 under the Latest Releases folder. |
| Step 7 | Click Download or Add to cart and follow the prompts. The files to download are: |
| Step 8 | To view the Readme file, use the Add to cart download method. |
| Step 9 | Follow the instructions in the Readme file to install the firmware. |
Install 1.4(5)SR1 on Cisco Unified Communications Manager Express
You must download the Cisco Unified Wireless IP Phone 7921G, 7925G, 7925G-EX, and 7926G version 1.4(5)SR1 firmware image file from the software download center.
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:
To install the firmware, follow these steps.
| 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 . |
| Step 4 | Choose Cisco Unified IP Phone 7921G, Cisco Unified IP Phone 7925G, or Cisco Unified IP Phones 7926G. |
| Step 5 | Choose Skinny Client Control Protocol (SCCP) Software. |
| Step 6 | Choose 1.4(5)SR1 in the Latest Releases folder. |
| Step 7 | Click Download or Add to cart and follow the prompts. The files to download are: |
| Step 8 | 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. |
Install Bulk Deployment Utility
To install the Bulk Deployment utility, follow these steps:
| 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 . |
| Step 4 | Choose Cisco Unified IP Phone 7921G, Cisco Unified IP Phone 7925G, or Cisco Unified IP Phone 7926G. |
| Step 5 | Choose . |
| 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. |
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:
| 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 . |
| Step 4 | Choose Cisco Unified IP Phone 7921G, Cisco Unified IP Phone 7925G, or Cisco Unified IP Phone 7926G. |
| Step 5 | Choose . |
| 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 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. |
Important Notes
This section provides general information about using and supporting the Cisco Unified Wireless IP Phone 7921G, 7925G, 7925G-EX, and 7926G in your system.
- 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
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 7921G, 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.
Caveats
The following sections describe the Cisco Software Bug Toolkit and the open and resolved caveats.
Access Cisco Bug Search
Known problems (bugs) are graded according to severity level. These release notes contain descriptions of the following:
You can search for problems by using the Cisco Bug Search.
To access Cisco Bug Search, you need the following items:
Open Caveats
The following table lists severity 1, 2, and 3 defects that are open for the Cisco Unified Wireless IP Phones that use Firmware Release 1.4(5)SR1.
For more information about an individual defect, you can access the online record for the defect by clicking the Identifier or going to the URL that is shown. You must be a registered Cisco.com user to access this online information.
Because defect status continually changes, the table reflects a snapshot of the defects that were open at the time this report was compiled. For an updated view of open defects, access Bug Toolkit as described in Access Cisco Bug Search.
| Identifier | Description |
|---|---|
No audio when using SRTP and G.729 with 40ms frames |
|
Two DataPassThroughReq within 1 sec causes TransactionId '0' in Response |
|
792x fails to execute XSI when receiving 2 messages in a short period |
Resolved Caveats
The following table lists severity 1, 2, and 3 defects that are resolved for the Cisco Unified Wireless IP Phones that use Firmware Release 1.4(5)SR1.
For more information about an individual defect, you can access the online record for the defect by clicking the Identifier or going to the URL that is shown. You must be a registered Cisco.com user to access this online information.
Because defect status continually changes, the table reflects a snapshot of the defects that were open at the time this report was compiled. For an updated view of open defects, access Bug Toolkit as described in Access Cisco Bug Search.
| Identifier | Description |
|---|---|
|
792x uses lower tx power if max power via 802.11d is greater than 31 dBm |
|
792x phones does not accept Application URL longer than 170 characters |
|
792x unable to parse the config file if 16 Special Numbers are defined |
|
7925 in 2.4 GHz does not downshift to 12 Mbps if Bluetooth is enabled |
|
7925 loses connection to AP and is unable to reconnect |
|
792x PTT button for CME Intercom Paging does not work when in an active call |
|
792x audio path is set incorrectly after undocking |
|
792x Called Party Name not shown in Placed Call History |
|
792x does not send critical SCCP messages causing outbound call failure |
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. |
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.
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.
Feedback