Third, Globalstar phones have three modes: analog cell, digital cell (Qualcomm's CDMA) and satellite.

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The Japanese company, which is a big manufacturer of cell phones and infrastructure equipment such as base stations, once developed analog handsets for the North American market only to sell out of that business about 12 years ago.

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The current versions are not capable of exploiting the leading-edge cell-phone technology known as 3G, a high-speed offering that follows the original analog and second-generation digital systems.

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