Integrated Services Digital Network; ISDN
Technical term in telecommunications; refers to a set of communication standards for simultaneous digital transmission of voice, video, data, and other network services over the traditional circuits of the public switched telephone network.
See also: ＩＳＤＮ
サービス総合ディジタル網は、音声とデータを同時に送れる。
ISDN can transmit voice and data simultaneously.