Re: Specifying audio codec on fixed termination

"Bhattacharjee, Arindam (Arindam)" <[email protected]> Fri, 4 Dec 2009 10:24:13 -0600

Newsgroups	gmane.ietf.megaco
Message-ID	<703C56B521385C4C9091299BE82357B72FFFEDED@USNAVSXCHMBSA2.ndc.alcatel-lucent.com>

Hi Farcois,
Audio codec is indicated by some other protocol ( Mostly SDP-session description protocol. RFC 4566)  in Local & Remote Descriptor in Megaco.
H248.1 specifies the details about those descriptor.

-Arindam
________________________________
From: [email protected] [mailto:[email protected]] On Behalf Of François Plagnard
Sent: Thursday, December 03, 2009 11:20 AM
To: [email protected]
Subject: [Megaco] Specifying audio codec on fixed termination

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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