Our setup: We have our server behind a SonicWALL in our data center, ports 5060 10000-20000 is allowed from our offices and from our SIP provider, ports for provisioning and GUI management is allowed from our offices only.
Since PJSIP allows more than one device per extension we decided to try using it, so i enabled the PJSIP driver, set the port to 5062, allowed on the SonicWALL port 5062 from our offices, i was able to register two devices to one extension (201) and a third device to a second extension (202), when i call 201 from 202 it rings both devices but no audio and the call terminates after about 30-32 seconds.
I tried enabling ICE support in the extension settings but it did not help.
Can anyone that has PJSIP remote extensions working please guide me how to set this up?
Again, we currently have many CHANSIP extensions working at our offices no problem, the issue is only with PJSIP.
Thanks for any help.