Iridium Extreme® Satellite Phone

The Iridium Extreme satellite phone combines truly global voice communications with GPS positioning, location tracking, messaging, and emergency assistance in a rugged handset designed for demanding environments.

Operating over the Iridium global satellite network, the Iridium Extreme provides reliable communications across the entire planet, including remote land areas, open oceans, and polar regions. For expedition teams, maritime operators, emergency responders, remote workers, and outdoor adventurers, it provides an essential connection when cellular networks are unavailable.

Building on the proven Iridium 9555, the Iridium Extreme adds integrated GPS, location-based services, online tracking capabilities, and a programmable SOS button while offering enhanced protection against the conditions encountered in the field.

Built for Demanding Environments

Remote communications equipment needs to perform in environments where ordinary mobile devices may struggle.

The Iridium Extreme features an IP65-rated enclosure designed to resist dust and water jets, together with a rugged construction tested against MIL-STD-810F standards. From exposed worksites and desert expeditions to wet maritime environments, it is built for users who need dependable communications equipment in challenging conditions.

Truly Global Satellite Communications

Iridium's constellation of interconnected Low Earth Orbit satellites provides pole-to-pole coverage, allowing the Iridium Extreme to make and receive satellite calls from virtually anywhere on Earth with a clear view of the sky.

That makes it particularly valuable for journeys and operations that cross conventional communications boundaries. Whether you're hundreds of miles offshore, operating in an isolated region, or travelling at high latitudes, you remain connected to the same global satellite network.

Designed for Maritime Communications

For commercial operators, offshore teams, and recreational vessel owners, satellite communications can provide an important connection when travelling beyond coastal cellular coverage.

Iridium is also an established provider of maritime satellite communications, with recognition from the International Maritime Organization (IMO) and oversight of relevant maritime satellite services by the International Mobile Satellite Organization (IMSO).

However, vessel owners should not assume that carrying an Iridium Extreme handset alone satisfies every regulatory communications requirement. Requirements can vary according to vessel type, operating area, flag administration, and applicable maritime regulations. Owners and operators should always confirm the communications and safety equipment required for their vessel with their flag administration and relevant Port State Authorities.

For vessels where the Iridium Extreme is being used as an additional means of communication rather than mandated safety equipment, its global coverage makes it an excellent option for ship-to-shore calls and general communications beyond cellular range.

SMS and Email Messaging

When a voice call isn't necessary, the Iridium Extreme supports SMS and email messaging, providing another way to send short updates from beyond cellular coverage.

SMS messages support up to 160 characters, with delivery dependent on compatibility with the receiving mobile network or email service.

Satellite Data Connectivity

The Iridium Extreme also supports low-speed satellite data services.

For users who need to send email or transfer small amounts of data, we recommend XGate Satellite Email & Data Services. XGate is specifically designed to optimise data for satellite connections, helping reduce unnecessary airtime usage and improve reliability.

Other connection methods may work, but conventional internet applications are rarely designed for low-bandwidth satellite links and can consume airtime without delivering the expected results.

SOS Emergency Assistance

A dedicated programmable SOS button gives users a quick way to initiate an emergency alert when assistance is required.

The SOS function can be configured to contact a designated emergency service or nominated contact, providing an additional safety feature for people travelling or working in isolated and potentially hazardous locations.

GPS Positioning and Location Sharing

Integrated GPS allows the Iridium Extreme to determine and display its position and share coordinates with others.

For organisations managing personnel in remote environments, this functionality can also form part of a wider tracking solution, providing greater visibility of teams operating beyond conventional communications coverage.

Online GPS Tracking with OSAT Track

Pair the Iridium Extreme with OSAT Track to turn the handset into a connected tracking solution.

GPS positions can be transmitted to an online mapping platform, allowing authorised users to view current locations, breadcrumb trails, historical movements, and SOS events from virtually anywhere in the world.