provided by Star2Billing S.L.

hi,
I have Asterisk 1.6, A2billing 1.4, and Dahdi 2.2.0.1.
Callback is working but some times when A2billing is orginating a callback, a channel might be down, or the GSM network might be congested, or for any other reasons the call didn't make it out of Asterisk.
It seems that A2billing is not aware of this. A2billing would always consider a call successful if it was sent to Asterisk. Regardless of what actually happens after that A2billing is somehow unaware of it.
Is there away to configure A2billing to detect the result of the call that was sent to Asterisk and based on that result retries as long as it takes to orginate the call again untill at least it would be dialed out successfully by Asterisk?

That way callback would be perfect.

Thanks for your help.