If your phone downloads the file but immediately errors out with a "Sign Verification Failed" or "Load ID Incorrect" error, you must stage an intermediate firmware version.
Look for the model tag corresponding to your phone. For example, for a Cisco 7945/7965, look for : cisco ip phone downloading xmldefault cnf xml repack
: Administrators must often manually edit the tags within the XMLDefault.cnf.xml file to point the phone toward the specific firmware version they wish to install. Troubleshooting Boot Loops If your phone downloads the file but immediately
Note: Restarting the TFTP service does not drop active calls, but it will temporarily prevent booting phones from registering. Step 3: Implement a Stepped Upgrade Path for a Cisco 7945/7965
sip78xx.14-2-1-0001-14 sip88xx.14-2-1-0001-14 192.168.1.5 Use code with caution. 3. Define the Process Node Name