3
Tones
Dial Tone Steady tone you hear before you make a call.
Busy Signal Pulsing tone that indicates you dialed a number that is being used.
Reorder Tone Fast busy signal. This means that an invalid number was dialed, a service
feature was denied, or your handset has been off hook and inactive for
too long.
Special Dial Tone An interrupted dial tone. This means you may proceed to use a feature.
Service Set Tone A steady, high-pitched tone that indicates a feature was set or canceled.
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