Hi, My scenario is : Registrar : Asterisk Outbound Proxy : Openser Registers successfully, Invite is done successfully but the voice is one sided. But if I do direct registering to Asterisk all things are perfectly fine. In both cases i haven't use STUN. Can anyone please tell me what is the thing i am missing? Thanks Paw -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20100211/d7a9e3e0/attachment.html>