Hello everybody, I'd like to send a BYE after the receipt of a 200OK without sending an ACK before. (I'm using method pjsua_call_hangup()) The UAS handles the incoming BYE request in the method inv_respond_incoming_bye(),so a 200OK is send, the session is disconnected and the media session is destroyed. But, after that the UAS still sends consistently 200OK responses to the initial INVITE because he didn't received an ACK to this 200OK. Why does the UAS do that? I thought the session is terminated after sending the 200OK to the BYE.