[Asterisk-Users] One sided sound outgoing only

[Chris Mason (Lists)]

I am having a strange problem. I have two servers connected via iax trunk. 

ServerA has extensions and connects to the provider for long distance.
ServerB has extensions and connects to ServerA to make long distance.
Authentication is working fine.

Good calls:
ServerB extensions can call ServerA extensions just fine.
ServerA extensions can call ServerB extensions just fine
ServerA extensions can call long distance just fine

Bad Calls:
ServerB extensions can call long distance but call is one sided.

Extension phones are Sipuras and Polycoms, Codec is g729, provider is
Teliax.

Chris Mason