Iridium Extreme PTT

Voice Calling | Iridium Push-to-Talk

Dual-Mode Handset for Push-To-Talk and Telephony PTT, Voice, Data, SMS, SOS, GPS, and Location-Based Services

Interoperable with other PTT and LMR Systems

MIL-STD 810F Military-Grade Durability & IP65 Ingress Protection (IP) Rating

Reinforced Push-To-Talk Button and Diamond-Treaded Tapered Grip

The only truly global
Push-To-Talk system.

This durable, dual-mode handset features a reinforced push-to-talk button and high audio loudspeaker, delivering fast and simple communications.

The Iridium Extreme® PTT

Device for global dependability, adaptability and durability. Only Iridium can deliver the power of fast, simple and secure group communication with the toughest, most feature-rich PTT-enabled satellite phone on the market.

Dual Mode

PTT and phone modes for one-to-many or one-to-one communications

Extreme Durability

Weather-resistant keypad, wind-resistant microphone, IP65, MIL-STD 810F

Secure Communications

Secure and private commas with AES-256 Encryption


Works with other PTT devices and Land-Mobile Radio (LMR) systems


Can be used on-foot, In-vehicle, or in-building with Iridium PTT accessories

Emergency Ready

One-touch, programmable SOS button for 24/7 emergency assistance available in phone mode

Iridium PTT Command Center

Drag and drop interface to easily configure users, talk groups, and coverage areas in real time over-the-air by administrators or operation centers

The Iridium Extreme® PTT