Hi Benny! Studying sip_inv.c (as the best example of pjsip dialog usage) I noticed one contradiction between code and comments. In function inv_respond_incoming_cancel() in case of "Invite transaction not found" the response is created with status code 200, while in comments said "Respond CANCEL with 491". And really you mean status code 481 (Call Leg/Transaction Does Not Exist), as on page 55 RFC 3261, do you? P.S. Thanks for Changeset 1594. Best regards, Sergey
