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DPT Overview 1-25
1.1 Configuration
LED Indication
The Light Emitting Diode (LED) buttons indicate the line conditions with lighting
patterns.
Flashing light patterns
Slow flashing
(60 flash/min.)
Moderate flashing
(120 flash/min.)
Rapid flashing
(240 flash/min.)
LED Indication on the INTERCOM Button
The table below shows the lighting patterns for intercom line conditions.
LED Indication on the CO Button
The table below shows the lighting patterns for outside line conditions.
INTERCOM button
Off
Green On
Green slow flashing
Green moderate flashing
Green rapid flashing
Intercom Line Condition
Idle
Intercom call / Conference established
Intercom call hold
Intercom call exclusive hold / Consultation hold
Incoming intercom/doorphone call
— Items with a * are only available on the Single-CO button.
1 sec.
CO Button
Off
Green On
Green slow flashing
Green moderate flashing
Green rapid flashing
Red On
Red slow flashing
Outside Line Condition
Idle
I-use
I-hold
I-exclusive hold / Outside-to-outside line call /
Conference, Unattended
Privacy Release possible* / Hold Recall /
Incoming call
Other-use / Log-out
Other-hold*
BLF on DSS Button
The Busy Lamp Field (BLF) indicator button is red when the corresponding extension is
busy. This is available for flexible CO buttons assigned as DSS buttons on proprietary
telephones.