Very long calls charged by carrier but not showing onthe call logger

[nickofherts]

Here's a good one for you all.

IP500v2 with customer using ISDN30, first party TAPI to dial out from customer database (Filemaker)

Over the course of a Friday in March, weekend and Monday there was a series of 8 hour calls to two numbers, one the main number of a client and one the DDI
(The carrier says that continuous calls get charged in 8 hour blocks).
These calls are not recorded in the call logger.
Now for June another two calls both about 9 hours, again running concurrently slightly different times though. The time on the bill is 2pm.
The carrier is blaming the customer and/or phone system.

So, is there any way that a call could be placed via the TAPI and put on hold and forgotten about?
Is there any way that a call could not be recorded by the call logger ?
Does the phone bill record the start time or end time of the call ? either the call started at 2pm minus 9 hours or ended at 2pm plus 9 hours when no-one would have been in the office.

Any thoughts as to what is happening ? and how to stop it ?
We are running Monitor 24/7 to try and capture a log if it happens again.

Thank you.

 

[montyzummer]

as a first you can add a setting to restrict the length of calls
ex.
?
.t(60)
Dial
0

in this example calls after 60 min will get dropped

As regards to tapi it is possible that something is dialling and keeping the link open, but if no logs are being recieved via smdr i would be inclined to think its not the kit

That said if you can get somebody to monitor SSA periodically for active calls you can be sure that it will be picked up.

APSS (SME)
ACSS (SME)

 

[tlpeter]

Sounds like somebody is hacking in to your pbx.
It could be done by tapi.

BAZINGA!

I'm not insane, my mother had me tested!