What firmware are you running for the 7911G's? If it is 8.0(1) which shipped with many CCM 4.2 CD's there were many bugs (this should only take a few minutes); The 8.0(1) firmware release has been made available on Cisco Unified CallManager installation CDs; however, it will not be made available on Cisco.com due to additional bugs filed during. Hi Guys, Anyone can help me on Cisco Phone 7911G. I Upgrade the firmware from SCCP to SIP then I Upload it in tftp then I edit the SEP0024142DA507.cnf.xml, then theres an error: Connection received from 10.13.60.51 on port 49152 12/08 11:05:48.875 Read request for file. Mode octet 12/08.

SCCP & SIP Firmware download for the Cisco 7906 & 7911 IP phone. Information on how to configure CallManager Express to upgrade your IP phone, can be found in our Cisco CallManager Express Setup for IP Phone Firmware Upgrade article. SCCP Firmware Version: 9.2.1 Filename: cmterm-79117906-sccp.9-2-1.tar SIP Firmware Version: 9.2.1.
Cisco SIP Configuration. Cisco 7911G/7942/7945/7962 Phone with Asterisk Download the firmware (7911,7942, 7945, 7962) and extract it. Download and install/extract the tftp server software. Open the tftp server software a.
Understanding the Cisco Unified IP Phones 7906G and 7911G The Cisco Unified IP Phones 7906G and 7911G are basic IP phone designed for cubicles, classrooms, factory floors, warehouses, lobbies, and any other location where the phone either complements the user’s set of communication devices or is seldom used.

Download the SIP firmware(http://dl.dropbox.com/u/10036721/cmterm-7911_7906-sip.8-2-2SR4.zip) and extract it.

Download and install/extract the tftp server(http://tftpd32.jounin.net/download/tftpd32.400.zip) software.

Cisco 7911g Sip Firmware Update

Open the tftp server software and make the SIP firmware extracted directory as the root directory of the tftp server.

Goto command prompt(Start>Run>CMD and press enter) and enter the following command.

C:Usersuser>tftp <tftp-server-ip-address> get dialplan.xml

You should get the message starting “Transfer Successful”.(If your OS is Win7/Vista you have to install tftp client from the Add/Remove Programs)

Cisco 7911 Sip Firmware

Open your dhcp server configuration and add TFTP server IP address as the boot server in DHCP scope Options.(Provisioning)

Rename the with SEP<MAC-ADDRESS-OF-YOUR-PHONE>.cnf.xml. Then open that file and change the following lines to match with your IP PBX details.

Edit your Asterisk SIP configuration and add nat = no below the user context.

Cisco 7911g Sip Firmware

This step is important otherwise the phones will not register and on the phone’s display you can see the message Registering..

If you are using FreePBX the file will be /etc/asterisk/sip_additional.conf, In the case of Asterisk-GUI file is /etc/asterisk/users.conf