I’ve been able to borrow a brand spankin’ new Cisco 7960 SIP phone to play around with with my Trixbox server. This appears to be a really nice phone with a lot of features and a quality product. The phone seems to be pre-provisioned with my company’s settings and I am trying to figure out a way to “unlock” it to use with my Trixbox server.
I would consider this an advanced topic for myself since I don’t often get a chance to get my hands on cool hardware like this. The Trixbox server has some tftp files pre-installed but nothing really specific or the required provisioning files for my situation. The Cisco phone wants to phone home to the preconfigured tftp server. Sniffing the traffic and spoofing DNS is trivial but still a lot of work that I don’t need to do if I can figure out how to unlock this thing. I did find these links that appear to be useful, at least initially.
- Cisco 79xx detailed information – enjoy!
- Unlocking Configuration Mode
Obviously, I need to get into the details, but as I do, I’ll post my results.