A Backup battery will
ensure your clock
settings are retained in
the event of a mains
power failure. Your
telephone will function
as normal even when
the mains power is off.
Loosen the screw on
the battery
compartment door.
Connect and insert a
9 volt battery (not
included).
Install backup
battery
Replace the cover.
Tighten the screw on
the battery
compartment door.
Situate your Duet 450
Clock Telephone close
enough to a phone and
mains socket so that
the cables will reach.
Do not stand it on
carpets or other
similar surfaces that
generate fibres.
Do not cover or
enclose the machine;
allow a free flow of air
to its surfaces.
Situating your
phone
Your Duet 450 Clock
Telephone is only
designed to be operated
in a normal office or
domestic environment.
It should not be used in
bathrooms or near water.
Warning
If you do not have a
modern style socket,
call
Free
fone
0800
800 150
and ask for a BT
engineer to come and
fit the correct socket.
This is a chargeable
service.
Check your
telephone wall
socket
6
Duet 450 ~ Edition 3 ~ 1st October 98
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