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Operation
Volume Control
You can adjust the volume level by using the Volume Control
Slide lo cated on the top of the unit (left control). Pushing the slide up
in creases the volume.
Tone Control
You can adjust the tone by using the Tone Control Switch lo cated
on the top of the unit (right control). The Tone Control shapes the
sound by increasing the bass or the treble. The Tone Control Switch
has five (5) positions. Adjust the Tone Control until you find a position
that provides the clearest sound.
Boost Switch
If you require additional amplification at any point in your con ver-
sation, simply press & hold the Boost Button located on the top of the
unit. When the Boost Button is pressed, the microphone in the handset
is muted. This eliminates background noise and feed back. Release
the Boost Button when you want to speak. The other party cannot hear
you when the Boost Button is pressed. Simply press & hold the Boost
Button again, when you want additional amplification.
Battery Indicator
The battery indicator light comes on each time you pick up the
hand set to indicate the battery level is ok. If the indicator light does
not come on, the battery must be replaced.
Important: Before replacing the battery, make sure to dis connect
the IL40 from the telephone