Evolution of Wireless Networks
•With the number of wireless Internet users expected to increase in the next several years, more devices are being manufactured to support wireless technology. 
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•There is not a network standard on which to transmit information.
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•Three network standards, EDGE, cdma2000 and W-CDMA, are expected to be the competing standards.
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•A wireless device is manufactured to work only on a single type of network, just like a cell-phone.