Eigentlich nicht. Es wird per phpAGI gesteuert.
; For standard inbound call
[a2billing]
exten => _X.,1,Answer(1)
exten => _X.,n,AGI(a2billing.php,1)
exten => _X.,n,Hangup
; To standard Outbound the callback - this is used internally by the callback daemon
[a2billing-callback]
exten =>...