1. The #1 Threat in VoIP: International Toll Fraud
Toll Fraud occurs when automated botnets exploit weak SIP credentials or unauthenticated gateways to initiate unauthorized high-cost calls to international premium-rate destinations.
2. Multi-Layer Defense in SanalPBX
- Kamailio Pike Flood Protection: Blocks automated SIP scanners and brute-force register attacks at the network edge.
- TLS 1.3 & SRTP Encryption: SIP signaling and RTP audio streams are fully encrypted against eavesdropping.
- Dynamic Spending Caps: Automatically freezes suspicious international bursts to prevent unexpected telecom bills.