Cooper Telecom mobile phones in the 1980 s.
Free
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It was one of the representatives of mobile communication technology at that time. The equipment is usually large and heavy, but it marks the initial commercialization of mobile communication technology. Analog signal transmission technology was used, such as the AMPS system, which was the standard for the first generation of mobile communication networks at the time. Only voice calls can be made, the battery life is short, and it needs to be charged for a long time. Despite their relatively simple functionality, they offer users unprecedented freedom of mobile communication and become essential tools for business professionals and professionals. At that time, the price was relatively high, but its portability and mobility made it competitive in the market.
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