High speed 3G mobile communications promise to deliver media-rich content for cell phones by means of W-CDMA, EDGE, and CDMA2000 protocols via the Internet. To provide the bandwidth, the cellular base ...
The iPhone 3G automatically switches between 3G and 2G networks for voice and data connections. In theory, the phone should hop off 3G when signal strength is too low or non-existent, and hop back on ...
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