IBM 4900, 412CID Lights and Cadence Reference List, Status Indication

LIGHTS AND CADENCE REFERENCE LIST

LED	Status	Indication
Lines 1-4
	Off	Line is not in use
	Flashing Slowly	Incoming outside call is ringing
	On Steady	Line is in use by another extension or phone line is not connected
To that Line.
	Flashing Rapidly	Line is on hold by your extension
	Blink 1	Line in use by you
	Blink 2	Line on hold by another extension
	Blink 3	Call being transferred to your extension
Intercom
	Off	Not in use
	Flashing Slowly	You are making an intercom call or paging
	Flashing Rapidly	You are receiving an intercom call
Speakerphone
	Off	Phone in handset mode or your phone is idle
	On Steady	Phone in speakerphone mode
	Flashing Slowly	Phone in headset mode
Shift
	Off	First level of key functions active (lower) mode
	On Steady	Second level of key functions active (upper) mode
Mute
	Off	Extension is not muted
	On Steady	Extension is muted
Do Not Disturb (DND)
	Off	DND is OFF
	On Steady	DND is ON
Redial
	Off	Not in use or single redial
	Flashing Slowly	Phone in auto redial mode
Messages/New Calls
	Off	No messages or new calls
	On Steady	Phone has received new calls
	Flashing Rapidly	Messages have been left in voicemail box

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