Hi Benny, case1 pjsip ver8.0 on symbian is registered fine Using Private IP case2 when i used a Public IP in pjsip ver 8.0 on symbian it is continuously registering and unregistering In case1 i made a call from pjsip to expro client(PJSIP to expro) i got one way communication. i got the voice at pjsip side,but no voice at expro client side. In Case1 i made a call from pjsip to pjsip, no voice at both sides.but rtp flow is there regards rams --------------------------------- Unlimited freedom, unlimited storage. Get it now -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20071123/00d3785b/attachment.html