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Integrated Services Digital Network (ISDN)

Integrated Services Digital Network (ISDN) is a network technology that supports the digital transfer of simultaneous voice and data traffic along with support for video and fax over the public switched telephone network. ISDN gained popularity around the world during the 1990s but has largely been supplanted by modern long-distance networking technologies.[1]

  1. Defining Integrated Services Digital Network (ISDN) Lifewirw