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History of the Telephone

History of the Telephone

A telephone, or phone, is a telecommunications device that permits two or more users to conduct a conversation when they are not in the same vicinity of each other to be heard directly.

 

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Kimberly Bear

Kimberly Bear

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Use of multiple cell tower sites, each connected through a network, allowed users to travel and even switch cell towers during a call. It was a revolution built on existing, analog technology with the first being built in Chicago in 1977.

Article: MakeUseOf
Source: A Brief History Of Mobile...

Early telephones were for the elite, and were so uncommon that they came in widely varying designs, nearly all ostentatious and victorian in appearance.

Article: History of Phones: 9 Tele...
Source: WebUrbanist

The first call was made from Bell to an assistant sitting 15 feet away on March 10, 1876, when Bell said, “Watson, come here, I want you.”

Article: History of Phones: 9 Tele...
Source: WebUrbanist

In 1983, Motorola introduced the first cellular telephone in the United States.

Article: A brief history of cell p...
Source: Yahoo! News
Kimberly Bear

Kimberly Bear

39 Knowledge Cards 

Called the DynaTAC, this bulky device bears little resemblance to the mobile phones of today.

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Bell, Sanders and Hubbard formalized their relationship by creating the Bell Telephone Company, the direct corporate predecessor of today’s AT&T.

Article: Inventing the Telephone| ...
Source: Inventing the Telephone| ...
Kimberly Bear

Kimberly Bear

39 Knowledge Cards 

Bell Telephone issued the first telephone stock to seven stockholders. The initial telephone exchange opened the following year in New Haven.

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By the summer of 1877, the telephone had become a business. The first private lines, which typically connected a businessman’s home and his office, had been placed in service.

Article: Inventing the Telephone| ...
Source: Inventing the Telephone| ...

Cellular phones are one of the fastest growing and most demanding telecommunications applications.

Article: The History of the Teleph...
Source: The History of the Teleph...
Kimberly Bear

Kimberly Bear

39 Knowledge Cards 

Today, it represents a continuously increasing percentage of all new telephone subscriptions around the world. Currently there are more than 45 million cellular subscribers worldwide, and nearly 50 percent of those subscribers are located in the United States.

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By the end of 1877 there were three thousand telephones in service.

Article: Telephone History
Source: Telephone History

The telegraph and telephone are both wire-based electrical systems, and Alexander Graham Bell's success with the telephone came as a direct result of his attempts to improve the telegraph.

Article: The History of the Teleph...
Source: The History of the Teleph...
Kimberly Bear

Kimberly Bear

39 Knowledge Cards 

The telegraph was a highly successful system with its dot-and-dash Morse code, but it was basically limited to receiving and sending one message at a time.

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In the 1870s, two inventors Elisha Gray and Alexander Graham Bell both independently designed devices that could transmit speech electrically (the telephone)

Article: The History of the Teleph...
Source: The History of the Teleph...
Kimberly Bear

Kimberly Bear

39 Knowledge Cards 

Both men rushed their respective designs to the patent office within hours of each other, Alexander Graham Bell patented his telephone first.

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