全球行動通訊系統 - 維基百科，自由的百科全書 全球行動通訊系統 （ G lobal S ystem for M obile Communications），即 GSM ，是當前應用最為廣泛的 行動電話 標準。全球超過200個國家和地區超過10億人正在使用GSM電話。GSM標準的廣泛使用使得在 行動電話運營商 之間簽署「漫遊協定」後用戶的國際 漫遊 變得很 ...
GSM - Wikipedia, the free encyclopedia GSM (Global System for Mobile Communications, originally Group Spécial Mobile), is a standard developed by the European Telecommunications Standards Institute (ETSI) to describe protocols for second generation (2G) ...
GSMArena.com - GSM phone reviews, news, opinions, votes, manuals and more... Resource for GSM handset information, includes product reviews, opinions, forums, manuals, and ringtones.
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Mobile phone - Wikipedia, the free encyclopedia A mobile phone (also known as a cellular phone, cell phone, and a hand phone) is a device that can make and receive telephone calls over a radio link while moving around a wide geographic area. It does so by connecting ...
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