[asterisk-users] g729 on 1.4.10.1

Jason Parker jparker at digium.com
Tue Sep 18 14:16:46 CDT 2007


Scott Moseman wrote:
> The gateway is transcoding the PSTN into g729 and passing it to
> Asterisk. The Asterisk never sees the PSTN from the outside.  I have
> watched the INVITE requests, they contain a request for a g729 only
> call.  But the INVITE to the phone does not include g729.
> 
> However, as previously stated, I did get a g729 phone to talk to
> another g729 phone.  So I assume that means pass-through *can* work,
> but something is not working right?
> 
> Thanks,
> Scott
> 

If you have anything in Asterisk trying to handle the audio, you cannot pass
it through.  For instance, if you are trying to record the call in ulaw, or
trying to playback prompts that aren't available in g729.

-- 
Jason Parker
Digium



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