| Term | Description |
1G | 1G - The first generation of analogue mobile phone technologies including AMPS, TACS and NMT
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25G | 25G - The enhancement of GSM which includes technologies such as GPRS
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2G | 2G - The second generation of digital mobile phone technologies including GSM, CDMA IS-95 and D-AMPS IS-136
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3G | 3G - 3G Stands for 3rd-generation. Analog cellular phones were the first generation. Digital marked the second generation.3G is loosely defined, but generally includes high data speeds, always-on data access, and greater voice capacity. The high data speeds are possibly the most prominent feature, and certainly the most hyped. They enable such advanced features as live, streaming video.There are several different 3G technology standards. The most prevalent is UMTS, which is based on WCDMA. (WCDMA and UMTS are often used interchangeably.)
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3GPP | 3GPP - The 3rd Generation Partnership Project, a grouping of international standards bodies, operators and vendors with the responsibility of standardising the WCDMA based members of the IMT-2000 family
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3GPP2 | 3GPP2 - The counterpart of 3GPP with responsibility for standardising the CDMA2000-based members of the IMT-2000 family. 3GPP2 is spearheaded by ANSI
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8PSK | 8PSK - Octantal Phase Shift Keying
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