But as you go down, take the mobile communications market -- you have digital cellular phones, cordless, pagers, all sorts of PDAs.

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In 1993, NTT DoCoMo, Japan's principal mobile-phone carrier, opted for a technical standard called Personal Digital Cellular (PDC), which was incompatible with the Global System for Mobile Communications (GSM), the standard adopted by most of the rest of the world.

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Last year, for the first time in years, the Federal Communications Commission refused to state whether the mobile communications market was competitive in its annual report to Congress on the state of the cellular market.

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