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Communications of the ACM

Communications of the ACM

DATA-DIAL: two-way communication with computers from ordinary dial telphones


An operating system is described which allows users to call up a remotely located computer from ordinary dial telephones. No special hardware or connections are required at the users' telephones. Input to the computer is through the telephone dial; output from the computer is in spoken form. Results of a test with telephones in the Boston area are reported.

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