Please note that if using Asterisk 1.6 or later the pipe (|) symbols below need changing to commas (,)
There are several reasons you may want to integrate FreePBX and A2Billing. Whether you’re just using FreePBX to setup trunks for your a2billing calling card system or you use FreePBX and want to route the outbound calls via a2billing to do least cost routing.
There are 2 things you need to do to integrate the two. The first is to add the following to extensions_custom.conf