1-18
DPT Overview
1.1
Configuration
LED Indication
The Light Emitting Diode (LED) button indicators provide the line conditions with lighting
patterns.
Flashing light patterns
Slow flash
(60 flash/min.)
Moderate flash
(120 flash/min.)
Rapid flash
(240 flash/min.)
←
1 sec.
→
LED Indication on INTERCOM Button
The table below shows the lighting patterns and the intercom line conditions.
INTERCOM button
Intercom Line Condition
Off
Idle
Green On
Intercom call / Conference established
Green slow flash
Intercom call hold
Green moderate flash
Intercom call exclusive hold / Consultation hold
Green rapid flash
Incoming intercom/doorphone call
LED Indication on CO Button
The table below shows the lighting patterns and the CO line conditions.
CO button
CO Line Condition
Off
Idle
Green On
I-use
Green slow flash
I-hold
Green moderate flash
I-exclusive hold / CO-to-CO call /
Conference, Unattended
Green rapid flash
Hold Recall / Incoming call
Red On
Other-use
Red slow flash
Other-hold
*
— Item with
*
is available at Single-CO button only.
BLF on DSS Button
The Busy Lamp Field (BLF) indicator button is red when the corresponding extension is
busy. This is available for DSS buttons of DSS consoles and for flexible CO buttons
assigned as DSS buttons on proprietary telephones.
With
Compliments
Absolute
Phone
&
Data