Hi, I have an issue and I can't identify if the behaviour is wrong:
Here is a working call Provider Customer SBC SBC INVITE (SDP offer)--> <--100 Trying <--180 Ringing (SDP answer) PRACK --> <-- 200OK (PRACK) <-- UPDATE 200OK UPDATE --> <--200OK (INVITE) ACK --> And here is a failed call Provider Customer SBC SBC INVITE --> <--100 Trying <--180 Ringing (SDP) PRACK --> <-- 200OK (PRACK) <-- UPDATE <--200OK (INVITE) 200OK (UPDATE) --> ACK --> BYE --> <--200OK (BYE) In the failed call I am being told by the provider that their SBC sent a BYE because the 200OK for the INVITE was received before it managed to send the 200OK for the UPDATE, I have checked the RFCs and can't find if the customer SBC is breaking any rules by sending an 200OK for the INVITE before it received a response for the UPDATE Any assistance is appreciated _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors