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Telephone | History, Definition, Invention, Uses, Facts | Britannica What is a telephone? A telephone is an instrument designed for the simultaneous transmission and reception of the human voice Telephones are inexpensive and simple to operate, and they offer an immediate, personal type of communication Billions of telephones are in use around the world
How Telephones Work | HowStuffWorks Telephones are one of the most important and useful modern inventions Learn about telephone operation, creating a telephone network and tones and bandwidth
How do telephones work? - Explain that Stuff An easy-to-understand introduction to how telephones and telephone exchanges work, with photos showing what's inside a typical phone
Telephone - Invention, Technology, History | Britannica Telephone - Invention, Technology, History: The telephone instrument continued to evolve over time, as can be illustrated by the succession of American instruments described below
Telephone - New World Encyclopedia The telephone (or phone) (from Greek: tele = far away; phone = voice) is a telecommunications device that is used to transmit and receive sounds (most commonly voice and speech) across distances
Telephones - Engineering and Technology History Wiki - ETHW The telephone is the equipment that a person uses to access the telephone network and talk to another user Along with telephone transmission and switching, the telephone is one of three major subsystems that make up a telephone network
What Is Telephony? | Definition from TechTarget Traditional telephone systems convert sound waves at one end of a call into electrical signals that travel to their destination via the wires and cables of the PSTN -- the circuit-switched telephone network that crisscrosses the globe