asterisk users - Feb 2008 - Codec preference selection, codec negotiation

Hi List;

Is it possible to do configuration at the user context
to let him use codec1 if destination support and if
not, then use codec 2?

For example, to let user1 use codec g729 if he needs
to call user2 and user2 support g729, and if user2
does not support g729 then use g711 (alaw or ulaw), is
it possible? I think this kind of settings required
codec negotiation and I do not know if Asterisk has
such capability.

Any help?
Regards
Bilal


     
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