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tone dialing

American  

noun

  1. 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 ).

Other Word Forms

  • tone-dialing adjective

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.