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Amos Edward Joel discovered and developed what he termed as the handoff system. The cell areas for the cell phone users weren’t restricted anymore; the user could freely roam across cell areas without disruption in their calls.
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Dr. Cooper set up a base station in New York with the first working prototype of a cellular telephone.
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Cell phone invented in 1973 by Dr Martin Cooper.
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SRA releases a mobile telephone whose weight was 3 kilograms.
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Cell phones go public.
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Motorola was the first company to introduce the first portable cell phone called Motorola DynaTAC 8000X.
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-Nokia, from Finland, launches the first portable car-telephone called the Nokia Talkman.
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The Cellular Technology Industry Association (CTIA) was developed.
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The technology on which the cell phones worked was called 2G or second generation.The 2G cell phones were smaller, around 100 to 200 grams. These were hand-held and were portable.
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Number of mobile subscribers in the world crosses 2.5 billion.
