The capabilities of the new Broadband Global Areas Network System (BGAN) will be extended by the fourth generation of Inmarsat satellites I-4. An agreement signed by ESA and Inmarsat on 15 December 2003 will use the I-4 satellites to extend the capabilities of the BGAN system. This will make global mobile braodaband services available to those at sea, in planes or travelling on land virtually anywhere in the world.