Hi, In the below call flow, when the UAC and UAS can start transmitting RTP packets. I think RTP session can be started after UAS receives PRACK for 180 ringing. I would really appreciate your opinion on this. Thanks
UAC -> UAS (Invite) UAS -> UAC (100 trying) UAS -> UAC (180 Ringing Require 100rel header is set) includes SDP Body UAC -> UAS (PRACK to 180 Ringing) UAS -> UAC (200 OK to PRACK) UAS -> UAC (200 OK to invite) No SDP UAC -> UAS (ACK to 200 OK for invite) Regards Rajesh _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
