I am using the latest version of Jitsi daily build (2015-05-05 03:07)
I installed it on a Windows 8 64bit machine. I am able to receive phone calls, but when I try to send calls, it is not able to complete the call.
It does work though if I am sending calls on the same local network.
It works using Jitsi 2.9 on Ubuntu for both the local network and VPN.
I installed x-lite on the Windows 8 machine and it was able to both send/receive calls over the VPN.
Any ideas on how to get Jitsi to send calls on Windows 8 through the VPN?