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7
Plug the telephone
cord into wall
socket
Set the
ringer volume
Plug the attached 3
pin plug into the
mains power
socket
Your Duet 450 is
now ready for use
The ringer volume
switch is located on
the side of the handset.
There are three
settings:
HI
A loud ring; your Duet
450 is preset to this
position.
LOW
A quiet ring.
OFF
no ring
OFF LO HI