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Signals — SMS pumping protection
Signals protects you from SMS pumping (artificially inflated traffic) — where fraudsters trigger OTP or sign-up SMS to premium ranges to generate revenue at your expense.
Signals protects you from SMS pumping (artificially inflated traffic) — where fraudsters trigger OTP or sign-up SMS to premium ranges to generate revenue at your expense.
Risk scoreEvery message gets a score from 0 (trusted) to 100 (highly suspicious).
Auto-blockDestinations above your threshold are blocked.
Not chargedBlocked traffic is not billed.
AnalyticsBlocked volumes and estimated savings by country and network.
What it watches
- Unusual volumes to a single number or number range
- High error rates in a range
- Number types and behaviour patterns, using machine learning
Key terms
| Term | Meaning |
|---|---|
| Event | An anomaly (risk) or a trust signal detected for a destination. |
| Risk score | The sum of events for a destination, 0–100. |
| Blocking | Stopping SMS to destinations above the threshold until the score falls. |
| Trusted list | Numbers you add so they are never blocked (e.g. staff, test numbers). |
Thresholds can be tuned per country or network to be more aggressive or more conservative.
Reporting
Signals reports show total, blocked and percentage-blocked messages plus estimated savings, by day or month, country and network.
Phonovation tipIf you send OTPs or have a public sign-up form, ask Phonovation about enabling Signals. It is one of the most effective protections against unexpected SMS bills.