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EDGE

EDGE (Enhanced Data rates for GSM Evolution) is a mobile phone data protocol that is up the three times faster than its predecessor, GPRS. When an EDGE-capable phone is within signal range of a compatible network, data speeds can reach a theoretical maximum of 236 Kbps, although some networks are capped at 135 Kbps to conserve bandwidth and real-world data rates are typically lower than the maximum threshold. When EDGE service is unavailable, GSM phones will resort to using the slower GPRS standard.

The key to the simplicity of EDGE is its similarities to preceding systems. The backward-compatibility of the system has given rise to the alternative designation of 2.75G, because although it is a part of the standardized 3G definition, when it began in 2003 it was not regarded as 3G technology. EDGE has since been succeeded by systems, such as HSDPA, UMTS, and WiMAX, with even faster data speeds where available.

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