Firmware Versions 8.4(4) for Cisco Unified IP Phone Models 7911G and 7906G

The 8.4(4) firmware image within the installation program, supports the Skinny Client Control Protocol (SCCP) for the following Cisco Unified IP Phone models:

This firmware version is supported on Cisco Unified CallManager Release 5.0 and higher, and Cisco Unified CallManager Releases 4.2, 4.1, 4.0, and 3.3.

Note: 7906G is not supported on 4.0, 5.0(1) and 5.0(2) Cisco Unified Call Manager releases.

Release Notes

For a list of Resolved Problems and Known Problems with this firmware version, you can obtain the Firmware Release Notes in English by clicking the following URL:


For all Phone firmware Release Notes, click the following URL:

For all phone documentation, click the following URL:


Image Authentication Support

Cisco provides image authentication with its various IP phone protocols.  Image authentication allows the phone to detect if the image has been tampered with before it is programmed into the phone. If the image fails the authentication process then the phone will reject the image.  Image authentication occurs through signed files.  All Cisco Unified IP Phone models 7911G and 7906G loads are signed and can only be upgraded or downgraded to other signed releases.

The 8.4(4) firmware uses signed (authenticated) files. This step improves IP phone security on the Cisco Unified IP Phone models 7911G and 7906G.


Installing the Firmware Load

Before using the Cisco Unified IP Phone models 7911G and 7906G with Cisco Unified CallManager release 3.3 or later, you must install the latest firmware on all Cisco Unified CallManager servers in the cluster.

Note: If you have a Cisco Unified CallManager on Release 3.0, 3.1, or 3.2, do NOT install this firmware.  You must first upgrade your Cisco Unified CallManager to the compatible releases listed in Table 1 or Table2.



Table 1: Compatible Cisco Unified Call Manager Release for 7911G (No support for 7906G in these releases)

Call Manager Version

Executable on Software Page

3.3(5)SR1 or later & ciscocm.3-3-DevPack-64.exe

ciscocm.3-3-5-sr1.exe; ciscocm.3-3-DevPack-64.exe

4.0(2)SR2b or later & ciscocm.4-0-DevPack-43.exe

ciscocm.4-0-2a-sr2b.exe; ciscocm.4-0-DevPack-43.exe

4.1(3)SR1 or later & ciscocm.4-1-DevPack-23.exe

ciscocm.4-1-3-sr1.exe; ciscocm.4-1-DevPack-23.exe



Table 2: Compatible Cisco Unified Call Manager Release that supports both 7906G and 7911G

Call Manager Version

Executable on Software Page

3.3(5)SR2 or later & ciscocm.3-3-DevPack-68.1.exe or later

ciscocm.3-3-5-sr2.exe; ciscocm.3-3-DevPack-68.1.exe

4.1(3)SR3a or later & ciscocm.4-1-DevPack-28.2.exe or later

ciscocm.4-1-3-sr3a.exe; ciscocm.4-1-DevPack-28.2.exe

4.2(1)SR1 or later & ciscocm.4-2-1-DevPack-03.3.exe or later

ciscocm.4-2-1-sr1.exe; ciscocm.4-2-1-DevPack-03.3.exe


Cisco Unified CallManager Voice Software download page:

The 8.0(1) firmware release has been made available on Cisco Unified CallManager installation CDs; however, it will not be made available on due to additional bugs filed during final testing. Cisco recommends that you instead use the updated 8.4(4) firmware load, which is now available on This recommendation is limited to this specific firmware release and has no bearing on any other software or firmware available on Cisco Unified CallManager CDs.

The 8.4(4) installation programs for the 7911G and 7906 G are listed below.

Note: For the Cisco Unified IP phone 7911G and 7906G, you should not add the .loads extension to the firmware version name in the Cisco Unified CallManager database.


Cisco IP Unified Phone Model 7911G and 7906G Installation Instructions

Perform the following procedure:

  1. Click the following URL:
  2. Download the file that is listed in Table 3 to your hard drive.


Table 3: Cisco Unified IP Phone Models 7911G and 7906G Firmware Loads


Cisco Unified IP Phone Models

CallManager Version

Executable on Software Download Page on CCO

MD5 hash

7911G and/or 7906G

5.0 and later



7911G and/or 7906G

5.0 and later



7911G and/or 7906G

earlier than 5.0




Note: 7906G is support requires Cisco Unified Call Manager release 5.0(3) or later.

Please note that different versions of the installer are needed for different Cisco Unified CallManager releases.  Cisco Unified CallManager releases earlier than 5.0 are based on a windows server platform.  For Cicso Unified CallManager release 5.0 and later are based on a Linux server platform.

When using Cisco Unified CallManager Release 5.0 or later

For Cisco Unified CallManager 5.0, you must do all software installations and upgrades by using the Software Upgrades menu options. The system can upload and process only software that Cisco Systems approved. You cannot install or use third-party or Windows-based software applications that you may have been using with a previous version of Cisco Unified CallManager with Cisco Unified CallManager 5.0.

  1. Using your web browser, login to the Cisco IPT Platform Administration web page
  2. Under the Software Upgrades menu, select Install/Upgrade.
  3. Fill in the appropriate values in the Software Location section for the file you downloaded above, and click Next.
  4. In the Available Software drop-down box, select the file you downloaded above, and click Next.
  5. After validating the MD5 has the correct value, click Next.
  6. In the Warning box, verify you have selected the correct firmware, then click Install.
  7. Check that you received a Success message.


When Using Cisco Unified CallManager earlier than Release 5.0

  1. Login to the console of the Cisco Unified CallManager Server where you downloaded the installer.
  2. Note the location where you saved the downloaded file.
  3. Double-click the file to start the installation.
  4. In the Welcome window, click Next.
  5. In the License Agreement window, click Yes.
  6. If a Read Only File Detected window pops up, click Yes.
  7. After the installation finishes, click OK.
  8. Reset all corresponding devices.



Cisco IP Unified Phone Model 7911G and 7906G Alternate Firmware format

The Cisco IP Unified Phone Model 7911G and 7906G Firmware version 8.4(4) is also supplied in a zip file, as an alternative in case a Cisco Unified CallManager is not available to run the executable installer program. The name of this file is

After unzipping the firmware files, they should be manually copied to the appropriate directory on the TFTP server.

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