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Broadband global area network (BGAN) is a global satellite Internet network by satellite communication company Inmarsat. It is designed for low-cost connectivity enabled with voice and data communications. It can be accessed anywhere on the earth’s surface, excluding the poles. It uses a constellation of three geostationary satellites at a time (of the 14 in the system), called I-4, designed to communicate with lightweight, surface-based, portable terminals about the size of a laptop computer.