provided by Star2Billing S.L.

When setting extracharge_did extracharge_fee in a2billing.conf. It adds extra charge for dids when calltype is standard and works correctly. When calltype is didcall it does not add extracharge.

Have investigated a little and it turns out that in Class.RateEngine.php that variable $A2B->dnid is set to destination number not dnid that call came in on when this occurs.

Does anyone know where variable $A2B->dnid is set that is used in Class.RateEngine.php ??

Anyway thanks to all of you for your great work am still investigating.

Good catch, nins!
$A2B -> dnid is set at various points throughout the AGI script (A2Billing_AGI/a2billing.php), and is also used as $this -> dnid in Class.A2Billing.php.
I've had a brief look at DID mode (from line 327 of a2billing.php) and things seems to be handled differently than the other call modes, so be careful where you tread.

got it working it does now add extra charge for did call.

Changed the following in Class.A2Billing.php :

Commented out line 675 which read

$this->destination = $this->dnid;

Changed line 1088

from

$this->dnid = $this->destination = $inst_listdestination[4];

to

$this->destination = $inst_listdestination[4];

Can someone check this did not affect something else, have checked standard call rating and didcall rating which are fine.