Rent Satellite Phones from GTC
Satellite Phones for Reliable Maritime Comms
Clear and reliable communication at sea is essential, whether you're a leisure sailor crossing oceans, a crew member aboard commercial vessels, or managing offshore operations. Satellite phones from GTC ensure connectivity far beyond the reach of VHF radios and mobile networks.
Our Iridium and Inmarsat satellite phones offer reliable voice calls, SMS messaging, built-in GPS positioning, and emergency SOS features. With flexible rentals, robust waterproof devices, and comprehensive support, we make it easy for you to stay safe and in contact during your voyage.
Trusted by sailors, yacht crews, offshore contractors, and even GTC customers the Worcester Buoys, GTC ensures your maritime communication remains seamless and secure, even in the most challenging marine environments.
Iridium Extreme Rental
The Iridium Extreme is a fully rugged satellite phone offering global voice, SMS, and GPS location sharing. With a dedicated SOS button linked to international emergency services and an IP65 weatherproof rating, it’s built for serious remote use. Ideal for lone workers, expeditions, and emergency preparedness. Optional live tracking available with GTCTrack.


Iridium 9555 Rental
Reliable and easy to use, the Iridium 9555 delivers global voice and SMS coverage in a compact, durable handset. It’s ideal for travellers, contractors, and remote workers who need dependable communication without extra features. Lightweight, weather-resistant, and rental-ready with everything you need included.
Inmarsat IsatPhone 2 Rental
A dependable and cost-effective satellite phone, the IsatPhone 2 offers voice, SMS, GPS tracking, and an SOS alert function over Inmarsat’s wide-reaching network. With long battery life, weather resistance, and easy operation, it’s a great choice for remote travel, marine use, and emergency backup, outside of polar regions.

FAQs
Which satellite phone is best for marine use?
The Iridium Extreme provides global coverage including polar and ocean regions, with built-in GPS and SOS functionality. The Inmarsat IsatPhone 2 also provides excellent maritime coverage, excluding polar waters. The Iridium 9555 is ideal as a compact backup phone for straightforward communication needs at sea.
Are your satellite phones waterproof?
The Iridium Extreme is IP65-rated, making it resistant to jet water, rain, and sea spray. Both the Iridium 9555 and Inmarsat IsatPhone 2 are also robust and weather-resistant, suitable for general marine environments.
Can satellite phones replace my VHF marine radio?
Satellite phones complement, rather than replace, VHF radios. They offer global range and privacy, especially valuable when beyond VHF or coastal mobile network coverage.
How do I charge my satellite phone at sea?
Our rental kits include wall chargers. The Iridium Extreme rental also includes a car charger, allowing easy charging through standard 12V marine power sockets.
Can I send emergency alerts from my satellite phone?
Yes. The Iridium Extreme and IsatPhone 2 feature a dedicated SOS button to quickly alert rescue services in case of emergency.
Is GPS tracking available for maritime users?
Absolutely. Both the Iridium Extreme and IsatPhone 2 include GPS tracking capability. Combined with our optional GTCTrack service, you can easily monitor and share your vessel’s position.