Hi Nanang/Benny ? A made a call to B, both are in call connected state. at this moment from B side internet is disconnected,then how can A identify that from B side net disconnected. If A is not receiving the RTP packets from B end then A can call the hangup method.? ?In PjSip how and where can find the receiving RTP streaming. could you explain me briefly with code. Regards Rams ? Your Mail works best with the New Yahoo Optimized IE8. Get it NOW! http://downloads.yahoo.com/in/internetexplorer/ -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20100318/69308f48/attachment.html>