Maxim Sobolev schreef: > Maxim Sobolev wrote: > >> Sorry, you guys were right, I was not. It seems that if Bob accepts only >> one format then the Alice can rely on not receiving any other payload type. >> >> http://www.rfc-archive.org/getrfc.php?rfc=4317 >> >> Example 2.1. >> >> In order to allow asymmetric session, Bob should accept more than one >> format, as in example 2.2. >> > > Speaking about original question, Bob should reply with G.711 followed > by the G.729 in its SDP, then if Alice doesn't re-INVITE it could use > G.729 for uplink, while Alice is likely to stick with G.711. > > Regards, > 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.
Regards, Stephane van Hardeveld _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
