provided by Star2Billing S.L.

Installation note,
if you have compiled SVN version of asterisk and you want to use a2billing then change from

exten =>_X.n, DeadAGI(a2billing.php|1)
to
exten => _X,n,AGI(a2billing.php,1)

in SVN versions change the "|" to ","
I'm using svn version to be able to use bluetooth enabled mobiles as a GSM gateways.

I have test a2billing svn version 1.3.x with the latest asterisk of svn trunk r80898 at this moment and I found it works fine.
my Asterisk serving 10 FXO (landline telephone), 12 FXS (internal lines) and 8 GSM mobiles connected via 8 bluetooth sticks. Over 3000+ tracked calls done with no problems at all, all calculation results are 100% acurate with 1 second increment, 30 secods incremet, and 60 seconds incremet with peak-on and peak-off calls.

best regards

Thank you, Essa for sharing your experience!