Hello all, I am thinking about one problem, consider following message flow:
1. UE A sends SIP INVITE message with SDP offer to EU B 2. On originating call leg there is application server announced about the call. 3. 180 Ringing message with SDP answer is sent from UE B to UE A (AS is announced that the call is in progress) 4. Time frame allocated to establish the call passed at AS and the message needs to be played ... Can now the AS make use of negotiated media paths and play some "called party not available" message without sending 200 OK message first? My assumption here is that media paths are negoiated (UE A claims sendrecv audio channel so it must be prepare to receive media) so AS "can" send this message. Consider also little complication, AS is not able to play media in a codec claimed in the answer. Can AS send another 180 ringing message where the appropriate codec will be issued? I will appreciate any clarification on this issues. br, Martin _______________________________________________ Sip mailing list https://www1.ietf.org/mailman/listinfo/sip This list is for NEW development of the core SIP Protocol Use [EMAIL PROTECTED] for questions on current sip Use [EMAIL PROTECTED] for new developments on the application of sip
