I'm trying to get Windows Messenger 5.x to work with several different SIP proxies/registrars, including one I am developing. I've had some success and some failure.
Has anyone been able to get Messenger 5.x to work with any known SIP proxy/registrar? (It's using the MS RTC SIP stack.) I'm able to get Messenger to register, and even presence information works correctly. However, if I try to use Messenger to send and receive instant messages, it fails. The net capture looks like this: A = Windows Messenger 5.x client B = Windows Messenger 5.x client R = SIP proxy / registrar A -> R: REGISTER R -> A: 200 OK B -> R: REGISTER R -> B: 200 OK [leaving out SUBSCRIBE/NOTIFY] On A, open IM window for user at B. Type something, hit enter. A -> R: INVITE R -> B: INVITE B -> R: 100 Trying B -> R: 200 OK R -> A: 100 Trying R -> B: 200 OK B -> A: BYE A -> B: ACK [race condition] B -> A: 481 No call leg/transaction Looking at the network capture, and at the trace information emitted by MS RTC stack, apparently B receives the INVITE, accepts it, then immediately terminates the session. Any ideas why? Any help is appreciated. -- arlie _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
