The 3rd Generation Mobile Telephone Technology networks, successor of 2G networks technology, support much higher data transmission rates than 1G and 2G and offer increased capacity so that 3G mobile phones can offer subscribers a wide range of data services, such as mobile internet access and multimedia applications. There are two global and standardised 3G systems: CDMA2000, used mainly in Americas and Asia, and UMTS (W-CDMA, TD-CDMA, TD-SCDMA) used worldwide, mainly in Europe and China.

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