stephane wrote:
> I am a bit confused now. Didn't you mean example 2.4? In 2.2 it says 
> explicitly
> <quote> ... uses either PCMU or PCMA codecs (payload type in RTP packet 
> tells which
> is being used).... </quote>, where in 2.4 two seperate audio streams are 
> established.

No, I did not. So, what's unclear about it? You can either have an 
option to use several codecs within one RTP stream (by accepting more 
than on payload type in the SDP answer), or establish *two independent* 
RTP streams with different codecs in each of those streams.

What I am talking about is exchange as follows:

Alice to Bob:
  SDP offer:
   m=audio XXXXX RTP/AVP 18 8 0

Bob to Alice:
  SDP answer:
   m=audio YYYYY RTP/AVP 0 18

Regards,
-- 
Maksym Sobolyev
Sippy Software, Inc.
Internet Telephony (VoIP) Experts
T/F: +1-646-651-1110
Web: http://www.sippysoft.com
MSN: [email protected]
Skype: SippySoft
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