There are some special Tones and Rings that are used to
indicate specific conditions while interacting with the phone
||A continuing steady tone.
(a digit must be dialed within 10 seconds)
|Recall Dial Tone
||Three short tones followed by a steady tone.
(action is accepted, proceed with dialing)
||Three short tones.
(action is accepted, service is in operation)
||Short tone repeated 60 times a minute.
(the party dialed is busy)
||A fast busy tone repeated 120 times a minute.
(call temporarily blocked, try later)
||Alternating high and low siren tone.
(dialing error made or special services denied)
|Call Waiting Tone
||One short beep.
(you have another call waiting)
||Call from another on-campus extension.
||Call from off campus or Campus Operator.
about phone features such as forwarding and transferring click
the feature at the left or go to the Phone