SipShield's patented AI inspects every SIP invite the moment it hits your network. Robocalls, spoofed caller ID, IRSF, Wangiri, and toll fraud are scored, ranked, and blocked before the call ever completes — protecting your subscribers, your reputation, and your revenue.
Every call is scored against dozens of live signals derived from our patented feature-vector pipeline (U.S. Patent No. 12,432,294). These are the fraud categories we stop most often.
STIR/SHAKEN attestation checks and behavioral fingerprints flag numbers pretending to be someone else.
Sub-second volume, cadence, and answer-seizure ratio analysis identifies auto-dialer traffic instantly.
Calls hop-scotching through obscure carriers or high-risk regions are scored and blocked at ingress.
Cross-carrier intelligence, honeypot data, and complaint feeds power a live reputation graph.
Premium-rate destinations and one-ring callback patterns are detected before revenue leaks out.
PBX hacking, SIP registration abuse, and international dial-plan probes are shut down at the SBC.
When a SIP INVITE arrives, SipShield extracts key elements — originating and terminating numbers, call routing data, caller behavior, geolocation, and language identifiers — and combines them with historical data from local and remote call databases. That combined dataset becomes an n-dimensional feature vector.
The feature vector is fed to a machine-learning module coupled with an Artificial Neural Network. The network returns a call-ranking parameter set, which the predictive model converts into a fraud verdict in milliseconds. Verdicts that exceed the risk threshold trigger automated action: the call is rejected, the route is torn down, and your NOC receives an alert. Every verdict is written to a permissioned blockchain ledger for audit and dispute.
The result: fraud calls are stopped in real time — not flagged after the fact, not caught in a nightly report, but blocked at the moment they try to enter your network.
A single hijacked PBX can generate five- or six-figure IRSF losses in one weekend.
The FCC's April 2026 FNPRM proposes a $2,500 per-call base forfeiture for originating VSPs that fail to take affirmative measures against illegal calls.
Post-hoc detection means the fraud already happened. Real-time detection means it didn't.
Subscribers churn after two or three scam calls. Blocking them at the network preserves NPS and ARPU.