Hi everyone, I have setup a couple of softphones outside of the internal network. They work perfectly except that after a little while you can no longer ring their extensions from the internal system to them. Asterisk just says "Goodbye". I'm almost 95% sure it's because of a Nat issue. I have tried almost every type of network connection option in Xten, what seems to work perfectly is putting a VPN client on the computer and connecting to the VPN. Is a VPN my only solution? Thanks a lot Dan