Table: Will CDMA and GSM Resolve the Wireless Mess?

TECHNOLOGY FREQUENCY LEADING CARRIER(S)

CDMA 800 MHz Verizon, Alltel 1900 MHz Sprint

GSM 1900 MHz VoiceStream, Cingular

iDEN 800 MHz Nextel

TDMA 800 MHz Cingular 1900 MHz AT&T

Data: Carriers

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