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dialed
dialed in
dialling code
dialling tone
dialog
dialog box
dialogic
dialogist
dialogize
dialogue
dialogue box
dialysis
dialyze
diamagnet
diamagnetism
diamanté
Diamantina
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dial tone
di·al tone (plural di·al tones)


noun 
Definition:
 
North America telephone sound: a continuous sound that you hear when you lift a telephone receiver. It indicates that a number can be dialed.
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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