Strange External to External Calls, 3CX PBX Hacked?

[PatrickS]

When I checked the call log today for 3cx PBX, I found strange external to external calls. How is that possible from 3CX PBX? Was it because my PBX security issues?

 

[Pierre_3CX]

Hi,
Try to edit a Call Report any to any for that day from the Reports section in place of the Call Log to see if you can get more info.
I believe this happens due to a transfer but they were initialized by an extension in the first place.

Do you recognize these numbers?

 

[PatrickS]

Hi @pj3cx

Thank you for your guidance, and the call report has way more details. I did a call report and figured out why. External number called in, somehow routed to an extension, which was unanswered, and then forwarded to that extension's mobile number.

| Do you recognize these numbers? --> only one number at the receiving end.

Thanks again.