Chapter 1: Introduction
10 The Inmarsat C services
Enhanced Group Call (EGC)
Two EGC services are available:
• EGC SafetyNET - the international safety service, which allows
authorised maritime safety information (MSI) providers, such as
meteorological offices, hydrographic officers and MRCCs to broadcast
messages to all ships in certain geographical areas.
MSI includes navigational and meteorological warnings, meteorological
forecasts and other urgent safety-related information, which is
addressed to all ships in NAVAREA / METAREA, user-defined circular or
rectangular area or coastal area.
Reception of SafetyNET messages is a mandatory function of the
GMDSS equipment that is required to be carried in certain ships under
the provision of the International Maritime Organisation's Safety Of Life
At Sea (SOLAS) convention.
• EGC FleetNET - the international commercial service, which allows
authorised information providers, such as commercial subscription
services, shipping companies or governments to broadcast messages to
selected groups of vessels, each of which has registered with the
information provider and been added to a FleetNET closed group /
network. The mobile terminals on these groups of vessels are identified
by an ENID (EGC Network IDentification) common to the group.
For further information on EGC via Inmarsat C read the Inmarsat
Maritime Communications Handbook, Chapter 6, or visit the Inmarsat
Maritime Safety Services website at www.inmarsat.com.
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