Hi all, I am having one basic doubt in Prvisional response.If 180 ringing and 183 session progress both came from UAS to UAC.
-----------INVITE+SDP-------------------> <----------183 Session progress(SDP)--------- ------------PRACK-----------------------> <------------180 Ringing(SDP)---------------- <------------200 Ok (for PRACK)--------------- <------------200 Ok (for INVITE)-------------- -------------------- --------------ACK( for Invite)----------> 1. what happen if 200 Ok for PRACK doesn"t recieve.call droped or not? 2. if 183 and 180 both has SDP than when final SDP negotiation can be done in 200 OK (PRACK)? can any body clarify this call flow as in my application Early media is must.... Thanks and regards Jay _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
