Re: Specifying audio codec on fixed termination

Thank you for your answer.
But, now my concern is how to specify an audio codec in a B channel in Local descriptor?
I have found no way to describe it in SDP format contained in Local descriptor (there is no RTP involved here or any other transport).

Best regards,
 
François Plagnard
 
-----Message d'origine-----
De : Tom Taylor [mailto:[email protected]] 
Envoyé : vendredi 4 décembre 2009 17:23
À : François Plagnard
Cc : [email protected]
Objet : Re: [Megaco] Specifying audio codec on fixed termination

It is legitimate to specify a Local Descriptor for the B channel termination, 
indicating which codec is being used.

François Plagnard wrote:
> Hello,
> 
>  
> 
> In a gateway between ISDN and IP, B channels on ISDN side are fixed terminations.
> 
> In some ISDN networks, the audio codec used line may vary per call (often between G.711 A law and mu law).
> 
> How this audio codec may be indicated by the MGC to the gateway?
> 
>  
> 
> Best regards,
> 
>  
> 
> François Plagnard
> 
>  
> 
> 
> 
> 
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