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Iridium for safety-of-life and mission-critical work

When your coverage ends or primary networks are disrupted, your team’s safety and operations cannot be compromised. Iridium keeps firefighters, linemen, rail crews, first responders, and NGOs connected with secure voice, push-to-talk (PTT), and IP data.

On roads, work sites, offroad corridors, and disaster zones, our network provides critical emergency backup communications wherever and whenever you need it.

Unbroken Coverage, No Blind Spots

Ubiquitous, low-latency, resilient connectivity for voice calling, encrypted PTT, and data in extreme environments.

Built For Field Conditions

Handhelds and terminals are certified for shock, dust, water, and temperature—plus vehicle-ready Iridium Certus^® terminals for reliable IP data and voice communications.

Security That Matches the Mission

AES-256 encrypted PTT sessions with secure, over-the-air provisioning and device management, enterprise-level VPN, and secure apps over Iridium Certus (e.g., WhatsApp/Signal).

A glowing digital shield with a lock icon at its center symbolizes cybersecurity and data protection, set against a dark background filled with cascading binary code.

Proven Capabilities Over Iridium

One-to-Many Push-to-Talk For Urgent Coordination

Manage talk groups and coverage areas in the Iridium PTT Command Center. Save time and administrative costs with automatic provisioning over-the-air.

Iridium Push-to-Talk

Mobile Voice Calling

Rugged satphones and vehicular kits keep leadership and field teams on the line when cellular networks are out of range or unavailable with reliable call notifications and clear and consistent voice quality.

Iridium Voice Calling

IP Data for Apps and Workflows

Send work orders, GIS tiles, photos, and messages over Iridium Certus; popular apps like WhatsApp, Signal and Iridium Chat help optimize field operations.

Iridium Certus^®

Critical Missions, Anywhere

NGOs, Disaster & Emergency Response

Group PTT for incident command, encrypted channels for inter-agency ops, and reliable, low-latency fallback when other networks are unavailable or out of reach.

Utilities & Field Service

Crew dispatch, switching orders, outage restoration, AMI backhaul, and site access in remote substations.

Rail Operations & Remote Work Crews

Roadmasters and wayside crews coordinate via PTT; backhaul telemetry, positive train control (PTC) and maintenance logs via Iridium Certus terminals along dark territory.

Construction & Infrastructure

Site safety check-ins, geofenced talk groups, and machine telematics—even on greenfield or pop-up sites with no terrestrial service.

Business Continuity & Critical Backup

Maintain command voice, PTT, email, and collaboration during fiber cuts, storms, or cyber events—your comms “Plan B” that acts like Plan A.

Ease of Control: Iridium Push-to-Talk Command Center

Point-and-Click Coverage

Create secured coverage regions up to 2.25M km², connect up to 10 separate areas under one talk group, and interoperate with any radio system, augmenting and supplementing your existing radio networks.

Global Push-To-Talk Ecosystem

Module-based solutions enable broadcast and satellite voice in buildings and vehicles, making your voice heard wherever your operations take you.

Secure Web-Based Platform

The PTT Command Center's centralized and secure platform provides seamless device and service management, making device role management seamless.

Security & Compliance

Encrypted Where It Matters

PTT operates off AES-256 encryption. For IP services over Iridium Certus, run end-to-end encrypted apps (Signal and WhatsApp) on your VPN.

Device Hardening

Handsets and terminals meet IP/MIL-STD ingress and environmental ratings, with secure provisioning options.

Case Study

Push-to-Talk Interoperability Enables Quick & Safe Deployment Of Remote Construction Teams

Workers in the field, cutting a gas pipeline

Our partner, Globalsat Group, worked with an Argentinian natural gas transportation company to quickly deploy a solution that leveraged Iridium PTT with 35 ICOM IC-SAT100 devices and docking stations.

The solution was deployed in one day, allowing maintenance workers to tackle 10,940 kilometers of pipeline construction.

Read the Case Study

Continuity you can prove

When other networks are down, we keep your business running. During the 2025 Spain power outage, we saw a 3,300% increase in network and voice activity.

During 2025 Spain power outage, Iridium saw a 3,300% increase in network and voice activity.

Achieve five 9's continuity

Design resilient primary or failover communications that keeps your teams talking and your data flowing when terrestrial links fail with multi-path solutions from Peplink and Iridium Certus providers.

Read the Whitepaper