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3.3
SYSTEM TONES
Intercom Dial Tone—A steady tone that indicates you can begin dialing.
Ringback Tone—Indicates the station you dialed is ringing.
Busy Signal—Indicates the station you dialed is busy.
DND/No More Calls Tone—Fast busy tone advises you the station you dialed is in the Do Not Disturb
mode or cannot receive any more calls.
Transfer/Conference Tone—Indicates your call is being held and you can dial another party.
Confirmation Tone—Very short beeps followed by dial tone indicate you have correctly set or canceled a
system feature.
ERROR TONE—A distinctive two level beeping tone indicates you have done something incorrectly. Try
again.
DIAL TONE
RINGBACK TONE—1000 ms ON/3000 ms OFF
BUSY TONE—500 ms ON/500 ms OFF
DND/NO MORE CALLS TONE—250 ms ON/250 ms OFF
TRANSFER/CONF TONE—100 ms ON/100 ms OFF
CONFIRMATION TONE—50 ms ON/50 ms OFF
ERROR TONE—50 ms of tone 1/50 ms of tone 2
CONTINUOUS
CONTINUOUS
CONTINUOUS
FOR TEN SECONDS
CONTINUOUS
FOR ONE SECOND
(programmable)
FOR THREE SECONDS
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