INMARSAT

The International Maritime Satellite (INMARSAT) organisation operates a constellation of geostationary satellites that extend mobile phone, fax and data communications to every part of the world, except the poles. INMARSAT provides telephony and data services to users world-wide, via special digital radios called "terminals". An INMARSAT terminal contacts the satellite and communicates to a ground station through the satellite. Ship-owners and managers, connected to an INMARSAT satellite, can dial into the international telephone network and send data over the internet.