IRSF
Revenue share fraud explained, with warning signs in call records.
VoIP fraud guides for carriers
What each type of telecom fraud looks like in call detail records, and practical ways to reduce exposure.
Wangiri
One-ring callback fraud and what it looks like in CDRs.
Traffic pumping
How inflated traffic earns termination fees, and the signs to watch.
PBX hijack
How hijacked accounts show up, and what to check first.
SIM box
Indicators of bypass traffic, and why they are indicators, not proof.
Baselines
Why fixed rules block genuine traffic, and what to do instead.
Quick glossary
- CDR: call detail record, the log of each call.
- CPS: calls per second.
- ASR: answer seizure ratio, the share of attempts that are answered.
- ACD: average call duration.
- IRSF: International Revenue Share Fraud.
- Baseline: a customer's own normal traffic pattern.