Hi!!!
This is my case… I have two frePBX boxes located in different cities.
I have a Cisco 7940 phone that I configure 1st for just one PBX and it is working fine.
The problem is trying to make my phone works with the 2nd PBX and obviously another different extension (configuration).
I got registered, and I can receive calls from other extensions, but I am not able to call any other extension.
Any ideas???