Alexandra Dias <alexandra.a.d.d...@gmail.com> writes: > I need to know the structure of the Sip file in order to when simulating a > inbound call we see 2 INVITE's arriving at the same time, with SIP > response: 491 - Request Pending to one of then, but keeping the call > running.
Are the two INVITEs attempting to begin the same dialog? If so, the UAS should respond to one of them with 482. (See RFC 3261 section 8.2.2.2.) If they are two re-INVITEs within an existing dialog, the UAS should respond to one of them with 491. (sections 14.2 and 21.4.27) In either case, one of the INVITEs starts a transaction which continues normally. If the two INVITEs attempt to begin different dialogs, the UAS can proceed in a number of ways. One way is to respond to one of them with 486. Dale _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
