Specifications

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