i used asterisk, and install kamailio for traffic RTP can be send between end points, and do not have to go through RTP proxy, any work this form?, and client behind to NAT.. regards! -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.sip-router.org/pipermail/sr-users/attachments/20141107/8e6f7d71/attachment.html>