id,summary,reporter,owner,description,type,status,priority,milestone,component,version,resolution,keywords,cc,backport_to_milestone,backported 1011,"""Invalid operation step"" assertion when TCP is used",bennylp,bennylp,"Scenario (in caller side): - 200/OK response to INVITE arrives - ACK is sent using TCP (because the Contact or Record-Route header says so) - TCP is connecting - before TCP connection is established, the 200/OK retransmission arrives - ACK needs to be resent - assertion is raised, since internally this ACK uses the same transmit buffer as the previous/pending ACK, and the pending ACK has not been sent yet ",defect,closed,normal,release-1.6,pjsip,trunk,fixed,,,,