Extensions over iax trunk

I have 2 servers one has pot lines, what i want to do is call in the pot lines on server A and punch in my extensions on the server 2 can get that set of extensions just like I would dial 202 to get extensions on server A only dial the 33205 extensions i have over on the b server. (33 being the outbound route for the IAX trunk)

I can setup ring groups and with extension 33205 and that works, there a way i can just dial the extension directly?

Also using AMP


Might want to look here if you havent already

voip-info.org/tiki-index.php … al+servers