Hello Dennis, Sorry i stop now 1) PjSIP is involved. because the NAT/Firewall issues are not completed. VPN is not there yet look at Bria software it has VPN client embedded its also like pjSIP 2) PjSIP is still not allowing the interconnect between Google Hangout (text), Facebook, where Bria software is already doing this (even they are also same pjSIP like) Thank you Best regards /Sham -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20131204/c0eacd9b/attachment-0001.html>