ITELEC IT, COMMUNICATIONS AND ELECTRICAL

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PSTN

PSTN - Public Switched Telephone Network

 

PSTN refers to the international telephone system based on copper wires carrying analog voice data. This is in contrast to newer telephone networks base on digital technologies, such as ISDN.

 

A PSTN line consists of two copper wires between the telephone exchange and a premises. The PSTN line is commonly used to homes and units.