182 thoughts on “ How to load SIP or SCCP on a Cisco 7940 7960 7941 7961 Ip Phone or fix a protocol application invalid message ” Tony June 14, 2014 at 5:28 am. Kindly, i am stuck with this since 2 weeks and unable to make the phone work, please, log file monitoring under TFTP log viewer tab keep showing ‘rcvd DHCP discovermsg from IP 0.0.0.0, mac 00:12:DA:AD:39:0A.
Cisco 7911G/7942/7945/7962 Phone with Asterisk
Download the firmware (7911 ,7942, 7945 , 7962) and extract it.
- View online Administration manual for Cisco 7911G - IP Phone VoIP IP Phone or simply click Download button to examine the Cisco 7911G - IP Phone VoIP guidelines offline on your desktop or laptop computer.
- Changing the firmware is a relatively easy task. It involves having a tftp server on the network that serves the firmware files to the phone upon bootup. After registering for a free account on the Cisco website, I was able to download the SIP9-3-1-1S firmware files and followed the instructions at this link to upgrade 7911 phones to SIP firmware.
- This video will will show you how to get your phone off the boot loop nightmare. We provide support for the cisco ip phone and convert them to sip.
- 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 and make the SIP firmware extracted directory as the root directory of the tftp server.
Download and install/extract the tftp server software.
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)
Open your dhcp server configuration and add TFTP server IP address as the boot server in DHCP scope Options. Refer this article to configure DHCP Options.
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.
Cisco 7911g Sip Firmware Upgrade
Edit your Asterisk SIP configuration and add nat = no below the user context.
Cisco Cp-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..
Cisco 7911g Sip Firmware Version
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