[codec] SDP Support for Multiple Packetisation Periods

Paul Beaumont <paulbeaumont.ietf@gmail.com> Thu, 28 July 2011 17:30 UTC

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Date: Thu, 28 Jul 2011 18:31:21 +0100
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Subject: [codec] SDP Support for Multiple Packetisation Periods
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Apologies, being first time to IETF and its mailing lists, if this is not the right mailing list to post this request to.

On initial inspection it looks like it is not possible to specify in SDP the specific packetisation period associated with a codec that is available through negotiation. Specific case I am concerned with is to support (1) G.711 @ PP=10ms and (2) G.711 @ PP=20ms; prioritised in that order. The ptime parameter would appear to apply to both.

Please can you advise where I should submit this question or if this is the right frum then whether the above observation is correct and any supplemental information/comments you may have? 

Paul Beaumont