ringing


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Related to ringing: Ringing tone

ringing

[′riŋ·iŋ]
(communications)
The production of an audible or visible signal at a station or switchboard by means of an alternating or pulsating current.
(control systems)
An oscillatory transient occurring in the output of a system as a result of a sudden change in input.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.