what are the different for callback in a2billing?

Discussion in 'General' started by jason3886, May 5, 2009.

  1. jason3886

    Joined:
    Apr 19, 2009
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    Hello,
    I am new for calling card system.
    what are the different for callback in a2billing?
    I saw my extensions_a2billing.conf like

    [custom-a2billing]
    exten => _X.,1,Answer
    exten => _X.,n,Wait(1)
    exten => _X.,n,DeadAGI(a2billing.php|1)
    exten => _X.,n,Hangup

    [a2billing-callback]
    exten => _X.,1,DeadAGI(a2billing.php|2|callback)
    exten => _X.,n,Hangup

    [custom-a2billing-callback]
    exten => _X.,1,DeadAGI(a2billing.php|2|callback)
    exten => _X.,n,Hangup

    [a2billing-cid-callback]
    exten => _X.,1,DeadAGI(a2billing.php|2|cid-callback|1)
    exten => _X.,n,Hangup

    [custom-a2billing-allcallback]


    so what are their meaning and how /when to use these different callback?
    thanks.

    Regards,
    Jason
     

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