Mission-Critical Communications & Sensing Infrastructure

Precision-engineered systems for the most demanding telecommunications, transport, and infrastructure environments worldwide.

SIGMAGEN VoIP Dispatcher
Fiber Optics Sensoring
Watermarking & Recording
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norsigma-eng — system-status
$norsigma status --all

✓ SIGMAGEN VoIP ONLINE latency: 4ms uptime: 99.98%
✓ Fiber DAS Network ONLINE nodes: 1,247 alerts: 0
✓ Watermark Engine ONLINE streams: 348 queue: 0
✓ Recording Vault ONLINE capacity: 87% retention: 180d

── Encryption: AES-256-GCM   Protocol: SIP/TLS   Region: EU-WEST
── Last audit: 2026-05-20T08:41:02Z   Compliance: PASS

$▮
SIGMAGEN VoIP Dispatcher // SIP/TLS Encrypted // 99.98% Uptime SLA // AES-256-GCM Watermarking // Railway Grade — EN 50121 // Distributed Fiber DAS // Real-Time Recording // GDPR Compliant // Porto, Portugal // SIGMAGEN VoIP Dispatcher // SIP/TLS Encrypted // 99.98% Uptime SLA // AES-256-GCM Watermarking // Railway Grade — EN 50121 // Distributed Fiber DAS // Real-Time Recording // GDPR Compliant // Porto, Portugal //
Core Solutions

Three pillars of critical infrastructure

Purpose-built for environments where failure is not an option.

01 — VOIP SYSTEMS
NORSIGMA
SIGMAGEN

SIGMAGEN Advanced VoIP Transporter Dispatcher Systems

High-availability voice dispatch platforms engineered for railway operators, road transport authorities, and emergency services. Zero-latency group call routing, multi-channel PTT, and intelligent priority queuing across SIP/TLS infrastructure.

Sub-5ms end-to-end voice latency
Multi-site failover with hot standby
Interoperable with TETRA/DMR/P25 networks
Dispatcher console with GIS map integration
Encrypted group calls up to 512 participants
SIGMAGEN DISPATCH CORE TRN OPS EMG CMD ACTIVE CHANNELS: 4  |  LATENCY: 4ms  |  STATUS: OK
02 — SENSING SYSTEMS

Railway/Road Fiber Optics Sensoring

Distributed Acoustic Sensing (DAS) and Distributed Temperature Sensing (DTS) systems deployed along railway tracks and road corridors. Detect intrusions, structural anomalies, vehicle presence, and vibration patterns in real time across hundreds of kilometres of fiber.

Coverage up to 100 km per interrogator unit
Sub-metre spatial resolution along the fiber
EN 50121 railway electromagnetic compatibility
Intrusion, derailment, and landslide detection
Integration with existing SCADA/signalling systems
IU VIBRATION INTRUSION 0 km 100 km
03 — RECORDING SYSTEMS

VoIP Watermarking and Recording Systems

Imperceptible digital watermarking injected at the codec level ensures chain-of-custody for every voice transmission. Combined with compliant call recording, tamper-evident audit trails, and forensic-grade retrieval — built for legal, regulatory, and intelligence requirements.

Inaudible watermark survives re-encoding and compression
AES-256-GCM encrypted recording vault
Compliant with MiFID II, GDPR, CALEA, and ETSI LI
Tamper-evident hash chain on every recording
Forensic playback with speaker identification
SOURCE AUDIO WM INJECT WATERMARKED HASH CHAIN a3f9… 7c2d… f1e8… 9b5a…
<5ms
SIGMAGEN VoIP Latency
100km
Fiber Sensing Range
99.98%
Platform Uptime SLA
256-bit
Encryption Standard
Technical Specifications

Full Capabilities Matrix

Detailed feature breakdown across all three engineering product lines.

CapabilityDetailSystemStandard
Group Call RoutingMulti-channel PTT, priority queuing, 512 participantsSIGMAGENSIP/TLS
TETRA InteroperabilityNative gateway bridging to TETRA, DMR, P25 networksSIGMAGENETSI TETRA
Hot Standby FailoverSub-second switchover, geographically redundantSIGMAGENHA Active/Active
GIS Dispatcher ConsoleReal-time vehicle/unit map, incident overlaysSIGMAGENCustom
Distributed Acoustic SensingVibration, intrusion, derailment — 1m spatial resolutionFiber DASEN 50121
Distributed Temperature SensingTunnel fire, cable overheating detection along routeFiber DASIEC 61757-2
SCADA IntegrationNative Modbus/OPC-UA/IEC 60870-5-104 outputFiber DASIEC 60870
Inaudible WatermarkingSurvives G.711/G.729/Opus re-encoding and mixingRecordingProprietary
Encrypted Recording VaultAES-256-GCM at rest, TLS 1.3 in transit, 180-day retentionRecordingMiFID II / GDPR
Tamper-Evident Audit LogSHA-3 hash chain, cryptographically signed metadataRecordingCALEA / ETSI LI
Forensic PlaybackSpeaker ID, noise reduction, legal-grade exportRecordingOn-request
Trusted By

Clients & Partners

Organisations that rely on NORSIGMA engineering for mission-critical infrastructure.

Infraestruturas de Portugal Vossloh Cogifer IpRadio REFER PHC Software BizSuporte BarrasTejadilho PortuguesPortugal Virtual EMDR PortaEquipaje Facebook Google
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Speak with our engineers about deployment requirements, integration, and compliance for your specific environment.

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Engineering Division

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Porto, Portugal

EU-WEST Infrastructure Region
🌐

norsigma.com

Main corporate site
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ai.norsigma.com

AI & automation platform

Compliance & Standards

SIGMAGEN VoIP EN 50121 ETSI TETRA IEC 61757-2 MiFID II GDPR CALEA ETSI LI IEC 60870 AES-256-GCM TLS 1.3

System Status

SIGMAGEN VoIP PlatformOperational
Fiber DAS NetworkOperational
Recording & Watermark EngineOperational