1.20 Proprietary Telephone (PT) Features
1.20.3 LED Indication
Description
The LED (Light Emitting Diode) of the Message/Ringer Lamp and following buttons (Line Status Buttons
and Corresponding Extension Status Button) show line conditions with a variety of light patterns.
Line Status Buttons: S-CO, G-CO, L-CO, INTERCOM, ICD Group, PDN
Corresponding Extension Status Button: DSS, SDN
1.
Light Pattern of the Message/Ringer Lamp
[DPT]
•
Incoming call from a trunk: Red flashing
•
Incoming call from another extension: Green flashing
•
Message(s) present (no incoming call): Red on
•
No message(s) present (no incoming call): Off
[APT]
•
Incoming call: Red flashing
•
Message(s) present (no incoming call): Red on
•
No message(s) present (no incoming call): Off
2.
Light Pattern of the Line Status Buttons
Light Pattern
Off
Green on
Slow green
flashing
Moderate green
flashing
Rapid green
flashing
Red on
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Feature Guide
Trunk Status
S-CO
This extension is holding the line using Exclusive Hold or using the line for an Unattended
Incoming call/
Privacy
Release
Incoming call
Other
for another
extensions are
extension/
using all trunks
Another
in the trunk
extension is
group.
using the line/
Another
extension has
the line on
Exclusive Hold.
Line Status Button
G-CO
L-CO
Idle
This extension is using the line.
This extension is holding the line.
Conference.
Intercom Line
Status
INTERCOM
Incoming call
—
Incoming Call
Distribution
Group Line
Status
ICD Group
This extension is
logged out of the
incoming call
distribution group.