Hi In pjsua, when hangup a call, it will send CANCEL request message and wait for 200 OK. After getting 200 OK and 487 request terminated messages from server, it will send ACK and call will get disconnected. If there is a delay in network, pjsua unable to hangup call untill receive 200 OK from other end. What I want is, it will disconnect the call immediately after sending CANCEL message without waiting for confirmation(200 OK ) from other end. How can I make PJSUA to do that? please help Regards Rohit yadav -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20151226/e79c6c4c/attachment.html>