Asterisk/A2billing by nitros2000

Im using trixbox with a2billing, at the moment everything work fine how every customer account run into negative balance thus a2billing doesn't check customer account regulary for low credit it will check it and the end of the call hints customer account run into negative balance... (Budget: $30-$250 NZD, Jobs: Asterisk PBX, MySQL, Paypal API, PHP, VoIP)
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