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A telephone, colloquially referred to as a phone, is a telecommunications device that permits two or more users to conduct a conversation when they are too far apart to be easily heard directly.
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May 8, 2024 · Telephone, an instrument designed for the simultaneous transmission and reception of the human voice. It has become the most widely used telecommunications device in the world, and billions of telephones are in use. This article describes the modern telephone’s components and traces its historical development.
Find a variety of corded and cordless landline phones from brands like HOLA, Beetel, Panasonic and more. Compare prices, ratings, offers and features of different models and choose the best telephone for your home or office.
The master telephone patent granted to Bell, 174465, March 10, 1876. The modern telephone is the result of the work of many people. Alexander Graham Bell was, however, the first to patent the telephone, as an "apparatus for transmitting vocal or other sounds telegraphically".
May 8, 2024 · In the 1870s two American inventors, Elisha Gray and Alexander Graham Bell, each independently, designed devices that could transmit speech electrically. Gray’s first device made use of a harmonic telegraph, the transmitter and receiver of which consisted of a set of metallic reeds tuned to different frequencies.
Learn about the history, technology, and features of the telephone, the device that converts sound waves to electric current and vice versa. Explore the articles on NEC Corporation, AT&T, Alexander Graham Bell, and mobile telephone from Britannica.
