Operation
Volume Control
You can adjust the volume level by using the Volume Control
Slide located on the top of the unit (left control). Pushing the slide
up increases 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 (for IL40 only)
If you require additional amplification at any point in your conver-
sation, for IL40 only simply press & hold the Boost Button located on
the top of the unit. When the Boost Button is pressed, the micro-
phone in the handset is muted. This eliminates background noise
and feedback. 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
handset 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
disconnect the IL30/IL40 from the telephone
CS-IL40manual.pmB
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