IBM -4900 User Manual
Page 11
LED
Lines l-4
To that Line.
Intercom
Speakerphone
Shift
Status
Off
Flashing Slowly
On Steady
Flashing Rapidly
Blink
Blink 2
Blink 3
Off
Flashing Slowly
Flashing Rapidly
Off
On Steady
Off
On Steady
Off
On Steady
Indication
Line is not in use
Incoming outside call is ringing
Line is in use by another extension or phone line is not connected
Line is on hold by your extension
Line in use by you
Line on hold by another extension
Call being transferred to your extension
Not in use
You are making an intercom call or paging
You are receiving an intercom call
Phone in handset mode or your phone is idle
Phone in speakerphone mode
First level of key functions active (lower) mode
Second level of key functions active (upper) mode
Extension is not muted
Extension is muted
Do Not Disturb
Off
On Steady
Redial
Off
Flashing Slowly
Messages/New Cal/s
Off
On Steady
Flashing Rapidly
Handset Battery Low
Off
Flashing Slowly
Flashing Medium
Flashing Rapidly
DND is OFF
DND is ON
Not in use or single redial
Phone in auto redial mode
No messages or new calls
Phone has received new calls
Messages have been left in voicemail box
Battery is not now
Phone is in headset mode
Battery low
Security code sync error
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