Portal:Telephony

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Telephony
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In telecommunication, telephony ( /təˈlɛfəni/ tə-lef-ə-nee) encompasses the general use of equipment to provide voice communication over distances, specifically by connecting telephones to each other.— Excerpted from Telephony on Wikipedia, the free encyclopedia.

The telephone, often colloquially referred to as a phone, is a telecommunications device that transmits and receives sound, most commonly the human voice. Telephones are a point-to-point communication system whose most basic function is to allow two people separated by large distances to talk to each other.— Excerpted from Telephone on Wikipedia, the free encyclopedia.

Colour photograph of a late nineteenth-century telephone.
Telephony