[SIPForum-discussion] Call Gets Answered During UPDATE?

[Heather Mayhan]

I have been trying to muddle through the question of, say you have a call IN PROGRESS, but not yet answered.

SIP UPDATE method is being used several times during the call set up, and being sent end-to-end.

What would the expected behavior be if the 200 OK indicating call ANSWER is received in between a SIP UPDATE and the corresponding 200 OK for that UPDATE?

Would the 200 OK indicating call ANSWER prevail, or should the UPDATE be acknowledged before sending on 200 OK for ANSWER?

Best regards,
Heather

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