Couldn't find anything about these on here but I am having trouble getting my registered. Is there something I am doing wrong? Anyone else have issues getting these phones to register?
First and foremost, make sure they have SIP firmware installed. I have a Cisco 7940 phone setup as an extension so I know they work.
The other problem maybe NAT'ing. If that's the case, you'll need to setup a TFTP server for the phone to contact. Direct the phone to contact the TFTP server, and look for a file called SIPDefault.cnf. This maybe found on the internet. You need to change a couple of lines:
nat_enable: "1"
nat_address: "(outside address)"
If you have more than one phone, this might pose an issue. I don't know since I have setup only one phone at work with a firewall that I have no access to and the Cisco 7912 phones I have at home connect to a local PBX setup as a trunk to my PBXes account.
Please let me know if there is more I can help with.
