The destination you are trying to call is not a allowed

When I call international number I get this message ?
the destination you are trying to call is not a allowed
I have freepbx setup the Dial Patterns for international it used to work on my old PBX with freepbx any ideas?

Are you using the new Extension Routing Module? Make sure that your extensions have access to the route(s) required for International dialling. Can you post your outbound route config?