Reach the local Asterisk with x-lite

The Asterisk server is working alright. I can call over the internet and isdn with x-lite and normal phones and am available for phone calls myself.

The problem is that I am trying to use the local Asterisk with a SIP x-lite client over the internet. Signing in works and the external client can use the normal side options over the phone installation. Just when I actually pick up I can’t hear the external client. I suppose it’s not NAT- and port problems since Asterisk works otherwise.

Do I have to configure it in any special way to use the external client?

check yer outgoing routes config, may be something there. It should be using the right trunk.