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Iridium Satellite Phone Knowledge Hub
Useful downloads, firmware upgrades, specifications and FAQs for the Iridium Extreme and Iridium 9555 satellite phones.
Your Iridium Satellite Phone Setup Hub
Use our dedicated knowledge hub to get up and running with your Iridium phone. Scroll down for an overview, downloadable useful information, specifications, and answers to common questions.
Choose airtime top-ups or a monthly contract for your Iridium satellite phone service.
Iridium extreme
Iridium Extreme Satellite Phone
The Iridium Extreme is a rugged satellite phone built for demanding environments. Designed to military standards and protected against dust and water, it provides reliable global voice and SMS communications, with a dedicated SOS button and integrated GPS location support for added safety when operating off-grid.
Iridium Extreme Downloads
Key documents and tools for Iridium Extreme.
Iridium Extreme Key Specifications
Headline technical details for Iridium Extreme. For full information, refer to the official data sheet and user manual above.
| Specification | Details |
|---|---|
| Dimensions | 140mm x 60mm x 27mm |
| Weight | 247g |
| Operating Temperature | -10 to 55 °C |
| Durability Standard | MIL-STD 810F |
| Ingress Protection | IP65 |
| Satellite Technology | Global LEO satellite operation using the Iridium Satellite Network |
Iridium Extreme FAQs
What are the primary differences between the Extreme handset vs. the 9555 handset?
The 9575 is smaller, lighter and has been designed to military grade specifications for durability. This phone also provides a GPS component which can be integrated with an LBS portal for online tracking and monitoring. The most noticeable difference is the Programmable SOS Button. This red button is located on the top of the phone, under a protective cover. By removing the cover and pressing the red button you can send your location information to your designated contact in the event of an emergency.
Are the Location Based Services (LBS) and Emergency SOS enhancements only available on the Extreme?
Yes
What makes the Extreme more durable than the other Iridium handsets?
- Military Grade Durability Tests Passed (MIL-STD 810F Test Procedures)
- IP65 Rating: Dust-Proof and Protected Against Jet-Water
Outside of the LBS and Emergency SOS features, is the functionality of the Extreme similar to the 9555?
Yes, the functionality is the same.
The IP65 rating that the handset received. Does that mean the handset can be submerged in water?
No. The phone has been tested to stand up to a jet spray of water. It cannot be submerged in water.
How accurate is the location (GPS) reporting?
Like with any GPS application, this all depends on the number of GPS satellites that the device can see at one time. The greater the number of satellites in view, the higher the accuracy will be. This is “real” GPS vs. Iridium location.
Test Your Iridium Satellite Phone
Before relying on your Iridium satellite phone in the field, it is important to test that the handset, SIM, and airtime are all working correctly. This quick test helps confirm signal acquisition, calling, and basic functionality.
Test Your Satellite Phone – Quick Guide
JPG • Step-by-step handset testing instructions
Iridium 9555
Iridium 9555 Satellite Phone
The Iridium 9555 is a dependable satellite phone for clear global voice and SMS communications in remote locations. Its compact, lightweight design, combined with full Iridium network coverage, delivers reliable off-grid connectivity for travel, maritime operations, and remote work beyond cellular coverage.
Iridium 9555 Downloads
Core documents for the Iridium 9555.
Iridium 9555 Key Specifications
Headline technical details for the Iridium 9555. For full information, refer to the official data sheet, certificates and user manual.
| Specification | Details |
|---|---|
| Dimensions | 14.3 x 5.5 x 3cm |
| Weight | 247g |
| Operating Temperature | -10 °C to +55 °C |
| Talktime Battery Life | Up to 4hrs |
| Standby Battery Life | Up to 30hrs |
| Antenna | Internally stowed antenna |
| Ports | Mini-USB data port |
Iridium 9555 FAQs
Does the Iridium 9555 work worldwide?
Yes. The Iridium 9555 operates on the Iridium satellite network, which provides truly global coverage, including oceans, polar regions, and remote land areas.
Does the Iridium 9555 have an SOS or emergency button?
No. The Iridium 9555 does not include a dedicated SOS button. Emergency calls must be placed manually by dialling the appropriate emergency number.
How do I get the best signal when using the Iridium 9555?
For best performance, use the phone outdoors with a clear view of the sky and fully extend the antenna. Avoid obstructions such as buildings, vehicles, cliffs, or dense foliage.
What battery life can I expect from the Iridium 9555?
The handset offers up to 4 hours of talk time and up to 30 hours of standby time. Actual battery life will vary depending on usage, temperature, and signal conditions.
Can the Iridium 9555 be used for data or internet access?
The Iridium 9555 supports low-speed data connections using compatible software and accessories. It is primarily designed for voice and SMS rather than internet browsing or high-speed data use.