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4G = Fourth Generation e.g. 4G or 4th Gen. Wireless Device or 4G Data Phone: A somewhat vague term used to describe wireless mobile radio technologies that offer faster data rates than current 3G (third generation) technologies. 4G networks are also more data-centric and based on standard Internet technologies such as IP. Voice service is typically provided using a special form of VoIP. WiMAX and LTE are examples of 4G technologies.
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