Security

DDoS Mitigation

Telecom infrastructure is a high-value DDoS target — a 5-minute SIP flood can take down a carrier serving thousands of concurrent calls. MOBITELSMS's purpose-built DDoS mitigation combines always-on traffic scrubbing, protocol-aware flood detection, and automatic black-hole routing to absorb volumetric attacks while protecting legitimate traffic with sub-second activation times.

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Attack Landscape

Telecom-Specific DDoS Threats

Generic network DDoS protection does not understand telecom protocols. A flood of 100,000 SIP INVITE packets per second is indistinguishable from high CPS legitimate traffic without SIP-aware inspection. Similarly, SMPP floods that send valid PDUs at 50,000 TPS will saturate connection handlers before a generic firewall triggers. MOBITELSMS's DDoS protection is protocol-native — it understands SIP, SMPP, Diameter, and SS7 traffic patterns, distinguishing between high-volume legitimate bursts (a flash sale campaign) and attack floods (random destinations, malformed dialstrings, registration storms) within milliseconds of attack onset.

Features

DDoS Mitigation Capabilities

Always-On Traffic Scrubbing

All inbound traffic is continuously analyzed by the scrubbing engine — no manual activation required. Baseline traffic profiles are built per customer and per protocol. Statistical anomaly detection identifies deviations within the first 100ms of an attack. Scrubbing operates inline with under 1ms added latency during normal operation.

SIP Flood Detection

Detects SIP INVITE floods, REGISTER storms (used to exhaust authentication worker threads), OPTIONS ping floods, and SIP amplification attacks using forged Via headers that cause legitimate SIP servers to send large 200 OK responses to the victim IP. Attack signatures are matched against a continuously updated library of known SIP attack toolkits.

Volumetric Attack Absorption

Upstream scrubbing capacity handles multi-Gbps UDP/TCP floods targeting SIP (5060) and SMPP (2775) ports. Anycast IP routing diverts attack traffic to scrubbing nodes geographically closest to the attack source, minimizing backbone congestion. Clean traffic is re-injected to the platform over GRE or dedicated transit links with sub-50ms latency.

Slow-Rate Attack Detection

Detects Slowloris-style attacks against the SIP TCP listener, slow-SMPP attacks that establish connections and never send PDUs (exhausting connection handlers), and half-open TCP flood attacks targeting the SMPP server. Connection timeout enforcement and per-IP concurrent connection limits prevent resource exhaustion without impacting slow-network legitimate clients.

Automatic BGP Black-Hole

For large-scale volumetric attacks, the platform can announce BGP RTBH (Remotely Triggered Black Hole) routes to upstream transit providers, dropping attack traffic at the internet exchange level before it reaches the platform's network edge. Black-hole announcements are scoped to the attacking IP range to minimize collateral impact on legitimate traffic.

Attack Analytics & Post-Mortems

Every detected attack is recorded with full packet samples, attack vector classification, source ASN distribution, peak packet rate and bandwidth, duration, and mitigation actions taken. Post-attack reports are available in the admin portal within 15 minutes of attack end. Historical attack timeline shows patterns for proactive carrier-level blocking.

DDoS Mitigation

Telecom-Specific DDoS Threats

DDoS Mitigation Capabilities

Specifications

Stay Online Under Attack

MOBITELSMS Assistant