How to load a Cisco Phone Firmware?

[Joe.Sarkis1]

I have a customer who is trying to load a phone firmware on some of their Cisco 7962 phones. They are currently on CUCM 8.6.2r. For some reason some of there phones that are in production today do not have the current phone firmware. They are planning on upgrading there CUCM to 10.5 in Mid-September. 

I am looking for a step-by-step guide that walks you through the process. I am hoping somebody can help me? Thanks 

[BradEast1 · Accepted solution]

The readme file provides step-by-step instructions:

When using Cisco Unified CallManager Release 5.0 or later

For Cisco Unified CallManager 5.0 (and later), 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. Enusre that the downloaded file has the same MD5 hash value as listed in Table 2.
6. Click Next.
7. In the Warning box, verify you have selected the correct firmware, then click Install.
8. Ensure that you received a Success message.

Upload to all servers in cluster and restart TFTP afterwards. Check compatibility matrix to verify an intermediate upgrade isn't required.

[Jaime Valencia]

The process itself is really straightforward, see the other reply, make sure to read the RNs for the target FW you want, some of them require mid-upgrades, depending on your current version, also some new FWs are signed with the new keys, so you might need to install the new CUCM keys for the files to be recognized as valid, if there's a need, the README/RNs from the FW will say so.

Depending on the amount of phones, you might want to reset them in batches, or try PFS.