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tone dialing
noun
- a system of calling telephone numbers wherein tones of differing pitch corresponding to the digits in the number called are electronically generated by manipulating pushbuttons ( pulse dialing ).
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Other Words From
- tone-dial·ing adjective
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Example Sentences
The New York World’s Fair in 1964-65 demonstrated touch tone dialing, and I.B.M. built the first small computers for schools and business.
From New York Times
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