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IMT - 2000, UMTS (Universal Mobile Telecommunication System). :
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. 23.5. UMTS R99
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IMS- (2G, 3G, 4G), . (http://www.tadviser.ru/index.php/%D0%A1%D1%82%D0%B0%D1%82%D1%8C%D1%8F:IP_Multimedia_Subsystem_(IMS))
/ISDN IMS - (, , ) IP. 3GPP IMS . IMS 4G LTE.
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6 "" HSUPA (High Speed Uplinc Packet Access) , 5,76/. HSUPA 2007 . HSDPA HSPA (High-Speed Packet Access).
7. HSPA (HSPA+ HSPA Evolution) EDGE (EDGE Evolution). 42 / 11 / .
, UMTS, .