Fraud Types
Fraud in which criminals drive traffic to expensive international premium numbers they control and take a share of the termination revenue.
The fraudster obtains a block of premium-rate international numbers, often in destinations with high termination rates, then generates as much call traffic to them as possible — by hacking a PBX, taking over accounts, or tricking people into calling back.
Because settlement rates are paid regardless of who initiated the call, the originating carrier is left with an invoice for traffic that was never a legitimate customer call.
IRSF losses hit your wholesale settlement directly and often surface only weeks later on an invoice. Real-time destination and velocity controls are the only effective defence.
A one-ring scam in which fraudsters place brief calls from premium international numbers so that curious victims call back at high cost.
The unauthorized use of a phone system or account to place calls that someone else has to pay for, usually to expensive international destinations.
Breaking into a business phone system or SIP trunk — usually through weak credentials or an exposed port — to place fraudulent outbound calls.
Artificially inflating call volumes to a rural or high-cost destination so the terminating provider can collect inflated access charges.
SipShield scores live SIP traffic with patented AI so the controls behind this term run automatically — and leave the audit trail regulators expect.