Telephone exchange

A telephone operator manually connecting calls with cord pairs at a telephone switchboard.

A modern central office, equipped for voice communication and broadband data.

Tivadar Puskás, inventor of the telephone exchange.

A telephone exchange is a telecommunications system used in the public switched telephone network or in large enterprises. An exchange consists of electronic components and in older systems also human operators that interconnect (switch) telephone subscriber lines or virtual circuits of digital systems to establish telephone calls between subscribers.

单词	Switching facility
释义	Switching facility 英语百科 Telephone exchange A telephone exchange is a telecommunications system used in the public switched telephone network or in large enterprises. An exchange consists of electronic components and in older systems also human operators that interconnect (switch) telephone subscriber lines or virtual circuits of digital systems to establish telephone calls between subscribers.
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Switching facility

Telephone exchange