Hi just purchased a 7915 Expansion module for a Cisco 7971 phone for our front office receptionist. I've done some reading and I'm a little confused about the firmware loads. We are using CME version 7.1. The current phone load for the 7971 is "load 7971 SCCP70.8-2-2SR2S". I've read that I need to change this to version 8.3(5) or later.
I've never upgraded the firmware so I downloaded the newest load for the 7970 however, it has a bunch of files in the zip files such as:
Do I need to TFTP all of these files to the flash and make them available to the TFTP server? Which file should I reference under the telephony-service command?
Yes - you need all of them.
The various sbn files are the actual firmware.
The .loads file is an index of the other files ( you can open it in notepad to see what I mean).
The default files are files that the phones may look for if not looking for any specific load version - they're a copy of the SCCP70.9-0-2SR1S.loads file)