We have two PBXs. One has Dahdi channels connected to POTS lines, and is connected via PJSIP to another PBX that has multiple extensions connected to it.
Inbound calls to the POTS lines are answered by the first machine and routed via the PJSIP trunk to the second machine, where they end up in a ring group. This works fine. However, I would also like to have outbound calls from the extensions on PBX 2 sent via the PJSIP trunk to PBX 1 and out via the POTS lines.
Traffic reaches PBX1, but the call does not complete. Unfortunately, I am not able to log onto that machine just now, so I cannot confirm the error, but is there anything specific I need to do (a context for the trunk?) to allow this to happen?