I have setup asterisk (realtime enabled with a2billing) with freepbx and a2billing on centos 6.4 OS.
few additional configurations left to do on freepbx / asterisk side to achieve the following:
- Main extension managment to be a2billing (as it is now):
- DID numbers should go directly or pass freepbx then extension on a2billing (usual case)
- some DID numbers will have IVR (on freepbx)and should link to extensions (made in a2billing)
- Extensions can access voice mail in freepbx as well dial the special freepbx numbers (such as echo test, mailbox)
Extensions & SIP's are created in a2bill while asterisk is connected via the realtime
freepbx handles incoming and outcoming calls.