Cisco IP Phone 7941 - with SCCP
Load : SCCP41.8-4-4S
Appl Load ID : jar41sccp.8-4-3-16.sb
We wanted to change it to SIP but in a normal procedure it is not downloading SIP firmware from TFTP.
Is there any specific way to upgrade it to SIP ?
Please help me
I do agree 100% with Jonathan, however to be fair to third party developers and their user base, the good ones have studied the Cisco phones in depth enough to have their solutions working well with them.
Let's be clear however, in my opinion there is no free or cheap "soft PBX" solution that beats CME, under all and any aspects.
Be advised that Cisco does not provide 100% RFC-compliant SIP firmware for phones beyond the 7940/7960. It may take a fair amount of effort to get 79x1 or newer models to function with third-party SIP proxies. Just a heads up before you bang your head against the wall.
I realize the person that low-rated my post above may have done that in error.
Below the guide to convert fimrware. It works with all models, not just 7940.
Why do you want to change to SIP?
You loose features but gain bugs doing so.