Suspected International Call Fraud

[Mujahed Khan]

I can see some fraud call in the Telecom provider invoice for October 2026......these calls are not showing in 3CX reports....

Any idea how this could have been happened?

My findings indicate that the suspicious calls were limited to three days (22, 24 and 25 October), involving 65 calls to Guinea-Bissau and Burkina Faso, with total charges of approximately AED 2,818.

 

[Alphabetic]

if theyre not in 3CX reports then they didnt originate from 3CX.

 

[NikosT_3CX]

@Mujahed Khan check if the trunk is registered anywhere else, like another PBX.
From the portal of your Telecom provider can you see the source ip of the trunk registrations ?

 

[Mujahed Khan]

Thanks for your response.

Just to clarify, we're using a physical PRI line, connected to our 3CX system through a Patton gateway.

The suspicious international calls appear on our invoice but are completely absent from our 3CX call logs.

In this setup, can we conclusively rule out 3CX if the calls are not reflected in its reports? Or is there any possibility of calls being initiated through the PRI gateway or another route without being recorded in 3CX?

I'm trying to establish whether we should focus our investigation entirely on the telecom provider and PRI gateway, or whether there are any additional checks we should perform within 3CX.

Appreciate your guidance.