Hi All, I am using my PJSIP based softphone behind some NAT, I am unable to Register the Softphone. But I am using the same SIP Information on the Eyebeam and ExpressTalk they are getting Registered. I think PJSIP is unable to use its STUN to get through the NAT.. Please Help ....... Thanks in Advance.......\\ Regards: Ravi -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20100123/f69b5ca1/attachment.html>