[Serusers] Cisco 7960 SIP firmware

[Ladislav Andel]

Hello,
I'm sorry for this off topic but would anybody know where can I get SIP 
firmware for Cisco 7960 IPphone?
What is the price or can anybody share, please? I'm speaking for my 
professor and am trying to get the firmware
for our lab IP phones for the lab purposes, not any commercial use. It 
would help even me to complete and show off my results of my semester 
project.

Thank you for any hints or redirecting.

Ladislav