[Asterisk-Users] Cisco 7960 Beating a Dead Horse

[Doug Lytle]

Shaun Ewing wrote:

>You need to do an incremental upgrade - eg: SIP 2.3 -> SIP 4.4 -> SIP 7.3.
>
>The ealier images can be obtained from Cisco if you have a valid CCO login.
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Actually, you need to go from earlier version to version 5.  This is the 
version Cisco started using an encrypted firmware.  Once you've moved to 
5, you cannot go back to an earlier version.  I went from 2.x to 5 and 
then from 5 to 7.3.  Keep in mind, you need to include both the  
P003-07-3-00  and P0S3-07-3-00 in the SIPDefault.cnf and OS79XX.txt

[OS79XX.txt]

P003-07-3-00
P0S3-07-3-00


[SIPDefault.cnf]

# SIP Default Generic Configuration File

# Image Version
image_version: P003-07-3-00
image_version: P0S3-07-3-00


This worked for me on 3 phones so far.

Doug