
Telephone | History, Definition, Invention, Uses, & Facts | Britannica
Dec 5, 2025 · Billions of telephones are in use around the world. This article describes the functional components of the modern telephone and traces the historical development of the …
Telephone - Invention, Technology, History | Britannica
Dec 5, 2025 · Telephone - Invention, Technology, History: The telephone instrument continued to evolve over time, as can be illustrated by the succession of American instruments described …
Telephone - Invention, Alexander Graham Bell, Communication
Dec 5, 2025 · Telephone - Invention, Alexander Graham Bell, Communication: Beginning in the early 19th century, several inventors made a number of attempts to transmit sound by electric …
telephone summary | Britannica
Alexander Graham Bell was an inventor, scientist, and teacher of the deaf whose foremost accomplishments, during a life lived in Canada and the United States, were the invention of …
Alexander Graham Bell | Biography, Education, Family, Telephone ...
Nov 27, 2025 · Alexander Graham Bell (1847–1922) was a British-American inventor, scientist, and teacher of the deaf whose foremost accomplishments were the invention of the telephone …
Mobile telephone | Definition & History | Britannica
Oct 28, 2025 · In the United States, interconnection of mobile transmitters and receivers with the public switched telephone network (PSTN) began in 1946, with the introduction of mobile …
How the Telephone Was Invented | Britannica
Overview of the invention of the telephone, with a focus on the work by Alexander Graham Bell.
Alexander Graham Bell | Timeline | Britannica
A timeline showing key dates in the life of Scottish-born American inventor Alexander Graham Bell. He is famous for creating one of the world’s most important communication devices—the …
History and operations of AT&T | Britannica
Telephone, an instrument designed for the simultaneous transmission and reception of the human voice. The telephone is inexpensive, is simple to operate, and offers its users an immediate, …
Bell Laboratories | History & Facts | Britannica Money
Bell Laboratories, the longtime research-and-development arm of the American Telephone and Telegraph Company (AT&T). It is now part of the Finnish telecommunications company Nokia.