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Tele-Communication (Telecom) Terms Glossary and Dictionary
Call Waiting Tone
Call Waiting Tone is a special service that allows a busy line to answer an incoming call by flashing the switch-hook. Audible ring (instead of line busy) is applied to the calling line, and the Call Waiting Tone is applied to the called line. (So that only the called party hears the tone, the connection is momentarily broken, and the other party to that connection experiences a moment of silence.) Flashing the switch-hook places the existing connection on hold and connects the customer to the waiting call. Call Waiting Tone is two bursts of 440 Hz at -13 dBm0/frequency for 0.3 seconds plus or minus ten percent every ten seconds.
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