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BLF Status Lamps
DSS Key Label
DSS Key Label Cover:
DSS Key Label Template
INDeX 8.1 - DT 3/4/5 Telephone Guide
The DSS keys on DT4 & DT5 phones incorporate dual-colour
BLF lamps. These show the status of the number stored under
the DSS key.
Red BLF Lamp Signals: Calls to/from other extensions.
– Slow Flash: Call on line parked at another extension.
– Fast Flash: Extension ringing.
– Solid: Extension or line busy.
Green BLF Lamp Signals: Calls to your extension.
– Slow Flash: Call on line parked at your extension.
– Fast Flash: External call ringing your extension.
– Solid: Call connected or held at your extension.
Alternate Green/Red Lamp Signal: Pilot Number.
– Slow Flash: Caller ringing pilot number.
Next to the DSS keys is a label. You can remove the label cover
to write on the card below. You can also remove the label cover
under the handset using the same method (it has a single pin
hole on the bottom edge) .
To remove the label cover:
1. Insert a fine but not sharp point (eg. end of a paper-clip) into
one pin hole. Squeeze the label to the right.
2. Repeat with the other pin hole.
3. Lift the label cover clear and remove the card insert.
To replace the label cover:
1. Replace the card insert.
2. Slide the tabs on the right-hand edge of the label cover into
their slots.
3. Bow the label cover to slip the tabs on the left-hand edge of
the label cover into their slots.
A template for printing DSS key labels exists. It can be used
with Word for Windows 2, 6 or 7. Contact your System Manager
for a copy of the template, alternatively you can obtain it from
our internet site (http://www.sdxplc.com).
DSS Keys – Page 23
38DHB0002UKAL - Issue 1 (08/99)
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