[Asterisk-Users] codec negotiation

[dkwok]

I have outgoing connection to iaxtel and another iax server A.

iax server A only accept g729 codec while iaxtel is something I am not 
quite sure of. At the moment iaxtel only accepts gsm. I remember 
previously it does accept g729.

my problem due to the switching between codec when making outgoing calls 
to these servers.

my iax.conf has these lines:

[general]

disallow=all
allow=gsm
allow=g729

I believe the general context define the codec to be used when making 
outgoing calls. The peer context below general context is to governed 
codec to be used for incoming calls. Is this correct?

now if I specificly disallow g729 in the general context I can make 
calls to iaxtel. however i cannot make calls to server A as it only 
accepts g729. After I allow g729, I can make call to server A but the 
call made to iaxtel cannot go through.

The console indicates that the call is accepted by iaxtel using codec 
729A, then it says the circuit is too busy.

Is there a clever way of governing the codec use for each outgoing 
connection in order to avoid the issue in codec negotiation?

-- 
David Kwok

Iaxtel/FWD # 17001813482 ext 1002