id summary reporter owner description type status priority milestone component version resolution keywords cc backport_to_milestone backported 1596 Fix handling of incoming UPDATE request (thanks Matt DiMeo for the report) ming bennylp "1. Send 500 with Retry-After header set randomly between 0 and 10 if we receive UPDATE while we haven't sent answer. 2. Change ""If UPDATE doesn't contain SDP"" test to be the earliest check. From RFC 3311: If an UPDATE is received _that contains an offer_, and the UAS has generated an offer (in an UPDATE, PRACK or INVITE) to which it has not yet received an answer, the UAS MUST reject the UPDATE with a 491 response. " defect closed normal release-2.1 pjsip trunk fixed release-1.16 1