Subject: [Megaco] Multi Media SDP

From: Troy Cauble <[email-masked]>
Date: Thu, 06 Sep 2001 18:28:28 -0400

SDP (RFC 2327) supports multimedia sessions, that is 
Sessions containing multiple Media.  

For example, the SDP below specifies 1 Session with 
audio and video Media streams with different remote 
addresses and using different coders.

         v=0
         m=audio 3456 RTP/AVP 0
         c=IN IP4 128.96.41.1
	 a=sendrecv
         m=video 7890 MyVideoSpec 2 18
         c=IN IP4 128.96.41.2
	 a=sendrecv

Note that when the "c=" line is below an "m=" line,
it refers to that Media stream only.

I would like to see an IG clarification that within H.248, 
SDP Session descriptions MUST NOT contain multiple Media 
descriptions, since an H.248 Stream Descriptor represents 
a single media stream.

-troy

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