[Asterisk-Users] Re: RE : Re: RE : codecs order and so on

[Olivier Taylor]

Thanks for all,

But Asterisk is able to use g729 pass-tru and both ends have g729, then the
question is:
Why asterisk doesn't use g729 pass-thru when both ends have it?

For incoming calls from Voip, G729 is not a problem, problems appears when I
make a call to Voip...

Olivier

Ps: No need to answer, that's just a fact

-----Message d'origine-----
De : asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] De la part de Tomislav
Parcina
Envoyé : jeudi 12 janvier 2006 10:31
À : asterisk-users at lists.digium.com
Objet : [Asterisk-Users] Re: RE : Re: RE : codecs order and so on


In article <00a701c616c8$719aabb0$6402a8c0 at olivierg>, 
olivier.taylor at gmail.com says...
> Calling zap => no problem, Ulaw is choosen
> Calling pstn provider =>fail (I need g729 but Ulaw is choosen) Call 
> from zap => no problem Ulaw is choosen Call from pstn => no problem 
> g729 used...

When you call out * establishes two channels. One is between Ua and *, 
and another between * and Zap (or provider).

If you call out, asterisk first negotiate codec for that channel. Then 
it tries to nagotiate codec for second channel. When you call your 
provider it can't nagotiate because he doesn't have g729 codec.

This is reason why you have problem, and I have explain how to solw it. 
There is nothing else I can say to help you.


-- 

Tomislav Parcina
name.surname at email.t-com.hr

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