I need a help with one issue.
I have this scenario:
IP phone A -> CUCM--> IPIPGW --> CUCME -> IP Phone B.
When I make a call from phone B to phone A, everything works fine. But when I make a call from phone A to phone B, I am not able to do any action thet needs MTP (Hold, Transfer....), no matter if I'm using g729 or g711. I have CUCM resources and transcoders on IPIP gw and one other gateway as a MTP.
How should I set up media resources? I have tried almost all possible combinations, but still nothing.
Thanks in advance.