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A cordless telephone or portable telephone has a portable telephone handset that connects by radio to a base station connected to the public telephone network. The operational range is limited, usually to the same building or within some short distance from the base station. A cordless telephone differs functionally from a mobile telephone in ...
Advanced American Telephones also entered a 20 licensing agreement with AT&T that will end in 2020 to use the AT&T brand on all telephones it would produce. In addition, Advanced American Telephones manufactured phones serve as a portrayal of AT&T's home phone service and are seen in ads for it. Phones made today by Advanced American Telephones ...
A wireless home phone service is a service that allows a regular wired telephone to connect to a cellular network, as if it were a mobile phone. [1] [2] It is an example of a wireless last mile connection to the public switched telephone network, also known as a wireless local loop . A small device, about the size of a home wireless router ...
The telephone played a major communications role in American history from the 1876 publication of its first patent by Alexander Graham Bell onward. In the 20th century, the American Telephone and Telegraph Company (AT&T) dominated the telecommunication market as the at times largest company in the world, until it was broken up and replaced by a system of competitors.
By 1904, over three million phones were connected by manual switchboard exchanges in the U.S."AT&T: History: Origins". Corp.att.com. Archived from the original on 20 August 2012. By 1914, the U.S. was the world leader in telephone density and had more than twice the teledensity of Sweden, New Zealand, Switzerland, and Norway.
1971: AT&T submitted a proposal for cellular phone service to the U.S. Federal Communications Commission (FCC). 3 April 1973: Motorola employee Martin Cooper placed the first hand-held cell phone call to Joel Engel, head of research at AT&T's Bell Labs, while talking on the first Motorola DynaTAC prototype.
A very substantial part of the DynaTAC was the battery, which weighed four to five times more than a modern cell phone. The phone had only 30 minutes of talk time before requiring a 10-hour recharge but according to Cooper, "The battery lifetime wasn't really a problem because you couldn't hold that phone up for that long!"
Early foreign made Trimline, December 1986. 90s Trimline phone made by Lucent/Philips and branded AT&T. The Trimline telephone is a series of telephones that was produced by Western Electric, the manufacturing unit of the Bell System. These telephones were first introduced in 1965 and are formally referred to as the No. 220 Hand Telephone Sets.
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