noun
EXAMPLES FROM CORPUS
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He lifted it carefully and got no dial tone then saw the plungers were taped down.
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Previous years were ok once you got the sought after dial tone .
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There was a click, but she stood listening to the dial tone , steadied by its urgent drone.
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When he called at noon, her answering machine emitted a long series of beeps followed by a dial tone .
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When he tried to call again, he could no longer get a dial tone .
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You should be able to feel the dial tone burr. 2.
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You should have heard a dial tone , a ringing sound, then burbling tones.