from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A low, steady tone in a telephone receiver indicating that a number may be dialed.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A telephony signal, usually in the form of a sound, used to indicate that the telephone exchange is working, has recognized an off-hook, and is ready to accept a call.


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    Sorry, no example sentences found.


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