Safety and security at sea:
are you truly covered?

Iridium GMDSS provides maritime safety communications coverage across the world, including remote regions outside the reach of traditional geostationary satellite services.

Delivered through Iridium’s low Earth orbit satellite network, the service gives vessels access to critical distress and safety communications wherever they operate.

A distress alert is often only the beginning of an emergency response.

Critical situations may require crews to provide further information, clarify what is happening and communicate directly with rescue authorities.

Iridium GMDSS Voice introduces voice-based safety communications within the GMDSS framework, giving vessels another way to communicate when circumstances require more than an alert or written message.

For decades, Inmarsat C has supported distress alerting, maritime safety information and regulatory compliance across the global maritime industry.

It remains a widely adopted and proven component of GMDSS installations for fleets worldwide.

Iridium GMDSS and Inmarsat C should not be viewed only as alternative services.

Used together, they provide access to two independent satellite networks with different architectures and coverage characteristics.

This network diversity can help operators strengthen availability, reduce reliance on a single communications path and build greater confidence that essential safety communications will remain accessible during critical situations.

Telemar TNL’s existing GMDSS Equipment Guide can also be incorporated into this journey to help operators explore the equipment required for different vessel types and operating areas.