AT&T MLS-34D Manual page 8

Red (top) light shows activity at another extenstion.
Green (buttom) light shows activity at your extension.
Steady on: Line is busy.
Off (off continuously): Line is idle, available for use.
Flash (long on, long off): Call is ringing on the line.
Alternating Red/Green Flash: (red on, green on, red on,
green on): Appears at all extensions in a joined call.
Wink (long on, short off): Call is on hold (anyone with line can pick up).
Flutter (short on, short off): Call is on exclusive hold (only extension
that put call on hold can pick up).
Broken flutter (short on and off followed by long off): Fax trouble.
If you have problems with your phone, contact your System Manager
or see the "Installation and Use" guide. If the problem is not solved, in
the U.S. please call our toll-free Helpline, available 24 hours a day:
In Canada, contact your local AT&T authorized dealer.
Lights
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