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INTRODUCTION Several telecommunications companies market wireless mobile Internet services as 3G, indicating that the advertised service is provided over a 3G wireless network.Services advertised as 3G are required to meet IMT-2000 technical standards, including standards for reliability and speed (data transfer rates).3G, standing for third generation, is the third generation of wireless mobile telecommunications technology.
While EDGE fulfills the 3G specifications, most GSM/UMTS phones report EDGE ("2.75G") and UMTS ("3G") functionality.
3G telecommunication networks support services that provide an information transfer rate of at least 0.2 Mbit/s.
Later 3G releases, often denoted 3.5G and 3.75G, also provide mobile broadband access of several Mbit/s to smartphones and mobile modems in laptop computers.
There are evolutionary standards (EDGE and CDMA) that are backward-compatible extensions to pre-existing 2G networks as well as revolutionary standards that require all-new network hardware and frequency allocations.
The cell phones utilise UMTS in combination with 2G GSM standards and bandwidths, but do not support EDGE.