leeuw

I have configed the Axon PBX and its all working on the internal lan I have opend 5060-5080 UDP and 8000-8030 UDP to have some ports open for a internet client logging on the axon server and YES i can login from the internet Buth when i make a call to extension 102 and i am logged in ass 101 i get the call that i place to 107 back and its looping. do i need to open some more ports? anybody having the same problem