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A satellite phone is a type of mobile phone that connects to other phones or the telephone network by radio link through satellites orbiting the Earth instead of terrestrial cell sites, as cellphones do. Therefore, they can work in most geographic locations on the Earth's surface, as long as open sky and the line-of-sight between the phone and ...
This page was last edited on 17 February 2019, at 21:36 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
While Motorola was developing the cellular phone itself, from 1968 to 1983, Bell Labs worked on the system called AMPS, while others designed cell phones for that and other cellular systems. Martin Cooper, a former general manager for the systems division at Motorola, led a team that produced the DynaTAC 8000X, the first commercially available ...
Very early bag phone (1988). Uses same handset as the Motorola DynaTAC 2000X. Very basic functions, with no battery-life meter, signal-strength meter, or lock capability. Uses very early lever-action hang-up cup. Pulsar 2000 SCN2165A 7-digit LED PWR, END, SND, Volume/Control Early bag phone. Uses same handset the DynaTAC 2000X, except gray in ...
Mobile phones by year of introduction. Subcategories. ... Mobile phones introduced in the 1980s (3 C) Mobile phones introduced in the 1990s (8 C)
Other phones that gained popularity early on include the Motorola Razr, which had a distinctly sleek design in vibrant colors like bright blue and candy pink. In 2002, with the launch of the game ...
NMT was the first mobile phone network to feature international roaming. In 1983, the first 1G cellular network launched in the United States, which was Chicago-based Ameritech using the Motorola DynaTAC mobile phone. In the early to mid 1990s, 1G was superseded by newer 2G (second generation) cellular technologies such as GSM and cdmaOne.
It was the primary analog mobile phone system in North America (and other locales) through the 1980s and into the 2000s. As of February 18, 2008, carriers in the United States were no longer required to support AMPS and companies such as AT&T and Verizon Communications have discontinued this service permanently.
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