7-2 Issue 1 July 2001
Feedback (Handset)
Tones Meaning
Busy --- --- --- Low-pitched, rapid tone (repeated 60 times per minute),
signifying the number dialed is in use.
Call Waiting Ringback
Tone ---_ A ringback tone with lower-pitched signal at the end;
indicates the extension called is busy and the called party
has been given a call waiting tone. If you hear this tone,
you may want to activate Automatic Callback.
Confirmation -- -- -- Three short tone bursts; indicates a feature activation or
cancellation has been accepted.
Coverage - One short tone burst; indicates your call will be sent to
another extension to be answered by a covering user.
Dial --------- Continuous tone indicating dialing can begin.
Intercept / Time-out
-_-_-_-
Alternating high and low tone indicating either a dialing
error, denial of a requested service or failure to dial within
a preset interval (usually 10 seconds) after lifting the
handset or dialing the previous digit
Recall Dial - - - ----------- Three shorts tone bursts followed by a steady dial tone to
indicate a feature request has been accepted and dialing
can start.
Reorder -- -- -- -- -- -- Fast busy tone repeated every half-second to indicate all
phone trunk lines are busy.
Ringback ---- ---- ---- ---- Low-pitched tone repeated 15 times a minute to indicate
the number dialed is ringing.