Iridium Extreme and Extreme Push-To-Talk (PTT)

A feature-rich handset that raises the bar on toughness
Iridium Extreme combines market-leading toughness with an unmatched feature set including location awareness and a fully integrated SOS button with emergency response service — all in one compact handset.

Push-to-talk just got smarter and tougher


The Iridium Extreme® Push-to-Talk (PTT) is the 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.

Main features:


Iridium’s most compact handset to date, Iridium Extreme is enhanced with more features than ever.

  • Compact physical footprint for streamlined portability
  • Intuitive user interface for out-of-the-box ease of use
  • Jet-water, shock and dust resistance for unparalleled durability
  • Enhanced SMS and email messaging capability
  • Integrated speakerphone
  • Headset and hands-free capability
  • Internally stowed antenna
  • Mini-USB data port
  • Accessories to create instant Wi-Fi hotspots anywhere
  • Reliable two-way global coverage

Enhanced Features:

  • Toughest military-grade handset ever built
  • Highest ingress protection (IP) rating in the industry (IP65)
  • GPS-enabled location-based services
  • Supports online tracking and Google Mapping services
  • Programmable, GPS-enabled, one-touch SOS button
  • Smallest Iridium phone ever
  • Diamond treaded, tapered grip for in-hand ergonomics
  • Rugged, high-gain antenna


Versatile communications at the push of a button

Iridium Extreme® PTT takes reliable group communications to the next level with unique features and capabilities, including:


  • Everything offered within the Iridium Extreme® plus push-to-talk functionality
  • Global PTT capabilities and configurable talkgroups
  • A reinforced PTT button
  • Phone Mode battery duration: standby up to 54 hours; talk time up to 6.5 hours
  • PTT Mode battery duration: standby up to 16.5 hours; Talk time up to 5 hours


  • Duration
    - Standby time: Up to 30 hours
     -Talk time: Up to 4 hours

  • Operating Temperature
    Operating Temperature Range: -10 °C to +55 °C

  • Display
    - 200 character illuminated graphic display
    - Volume, signal and battery strength meters
    - Illuminated weather-resistant keypad

  • Calling Features
    - Integrated speakerphone
    - Quick-connect to Iridium voice mail
    - Two-way SMS and short email capability
    - Pre-programmable International Access Code (00 or +)
    - Mailbox for voice, numeric & text messages
    - Selectable ring and alert tones (8 choices)

  • Memory
    - 100-entry internal phone book, with capacity for multiple phone numbers, email addresses and notes
    - Call history retains received, missed and dialed calls

  • Usage Control Features
    - User-configurable call timers to manage costs
    - Keypad lock and PIN lock for additional security