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The Global Mobile Satellite System (GMSS) consists of several satellite phone providers serving private customers. It can be compared to PLMN (wireless telephony carriers) and PSTN (traditional wire-based telephony). As of 2008, ranges of numbers have been assigned to four GMSS carriers: * Iridium Satellite LLC * Globalstar * Ellipso (a non-operational service, with no satellites launched) * ICO Global Communications In 1996, the ITU introduced country code +881 for direct international dialing of phones on GMSS providers. (Inmarsat had already been allocated country codes +870 through +874.) The next digit following the country code is allocated (two at a time) to a particular GMSS carrier:〔(ITU-T SG2 NCT: E.164 country code 881 plus two 1-digit ICs )〕 == Satellite numbers outside the GMSS country code == Inmarsat is a satellite-based communications provider, but it is primarily a maritime service and is not generally considered part of the GMSS. Globalstar usually allocates subscribers with a local number in the country they are based rather than using their GMSS country code. Iridium also uses an Arizona-based access number to call Iridium phones for those unwilling or unable to call the usually expensive GMSS number directly. Thuraya has been assigned +882-16, within the +882 range for International Networks. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Global Mobile Satellite System」の詳細全文を読む スポンサード リンク
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