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GSM - Wikipedia, the free encyclopedia
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The GSMA represents the interests of the worldwide mobile communications industry. Spanning 219 countries, the GSMA unites more than 750 of the world’s mobile operators, as well as 200 companies in the broader mobile ecosystem. ... GSM Technology...
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GSM World ... GSM Roaming ... Seach GSM World...
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GSMArena.com - The ultimate resource for GSM handset information ... Samsung Omnia II gets white and enjoys some hacked Sense UI ... The Samsung I8000 Omnia II has just been updated with HTC Sense UI by a hacked firmware. We also spotted the first shots of a ceramic white version of this uber-phone, so HTC HD2 might just...
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GSM services - Wikipedia, the free encyclopedia
GSM services are a standard collection of applications and features available to mobile phone subscribers all over the world. The GSM standards are defined by the 3GPP collaboration and implemented i...
en.wikipedia.org/wiki/GSM_services |
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GSM frequency bands - Wikipedia, the free encyclopedia
GSM frequency bands or frequency ranges are the cellular frequencies designated by the ITU for the operation of the GSM for mobile phones. There are fourteen bands defined in 3GPP TS 45.005, which su...
en.wikipedia.org/wiki/GSM_frequency_bands |
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History of GSM ... The Europeans realized this early on, and in 1982 the Conference of European Posts and Telegraphs (CEPT) formed a study group called the Groupe Spécial Mobile (GSM) to study and develop a pan-European public land mobile system.
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Developed in the 1980s, GSM was first deployed in seven European countries in 1992. It operates in the 900 MHz and 1.8 GHz bands in Europe and the 1.9 GHz PCS band in the U.S. Based on a circuit-switched system that divides each 200 kHz channel into eight 25 kHz time slots, GSM defines the entire cellular system,
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