Hi Benny, ????????????? I am running two PJSIP-UA's on two different machine and i am doing an IMS call.when i try to hang/Terminate the call using "h" option it is NOT terminating. Where as if i run one PJSIP-UA and other client and if i terminate the call, it is terminating perfectly.... May i know the reason why it is happening like this.... Also from the trace, I see there is NO 180-Ringing........in PJSIP-UA client calling....(is it optional) Waiting for your replies..... Thanks and Regards, vasant -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20090417/415f4b51/attachment.html>