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According to new research from The Diffusion Group, the number of mobile phone subscribers using TDMA technologies declined 23% in 2004, the first year of negative subscriber growth since the technology was introduced in 1991. The long awaited migration from TDMA to GSM occurred in earnest during 2004, while the number of mobile subscribers using CDMA and GSM technologies saw tremendous growth, 22% and 67% respectively. The data is from TDG's latest report, US Mobile Markets: Analysis & Forecasts....
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