Lucent Technologies 20DS User Manual

The DSS keys incorporate dual-colour BLF lamps. These show the
status of the number stored under the DSS key.

Red BLF Lamp Signals:
– Slow Red Flash:

A call on a line set under the key has been parked. To unpark the
call press the DSS key.

– Fast Red Flash:

Shows that the extension set under the key is ringing. To pickup the
call press the DSS key.

– Solid Red:

The extension, line or group set under the key is busy or not
available (e.g. set to no calls with no divert number set). Groups only
show busy if all members are busy.

Green BLF Lamp Signals:
– Slow Green Flash:

Shows a call parked by your phone. To unpark the call, press the
DSS key.

– Fast Green Flash:

Shows an external call ringing on a line. To answer the call, press
the DSS key.

– Solid Green:

Shows a call connected to your phone (or held by it).

Alternating Green/Red Lamp Signals:
– Indicates a call to a Pilot number set under the DSS key.

The 20DS requires the use of a power supply unit (PSU) plugged into a
mains power socket. You must only use the PSU's supplied by Lucent
Technologies.

– United Kingdom: 38YPW00001SBC.
– Rest of Europe: 38YPW00001EBC.
– Australia: 38YDW0002AUAA.