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Switching between the headset and the handset
Press the button
the handset.
Button down: handset is activated
Button up:
Muting the headset microphone
Press the button
Button down:
Button up:
Adjusting the sound clarity of the headset speaker
With the UI 765, you can adjust the sound clarity of the
headset speaker. Annoying background noise coming
through the headset speaker is filtered out and speech
intelligibility is thus enhanced.
Press the button
noise.
Button down: speech intelligibility enhancement
Button up:
Selecting the source — PC or telephone
Press the button
phone.
Button down:
Button up:
10
¸
to switch between the headset and
headset is activated
µ
to mute the headset microphone.
microphone is muted
microphone is activated
¹
to filter out annoying background
system is activated
speech intelligibility enhancement
system is deactivated
¾
to select the source — PC or tele-
PC is selected as the source
telephone is selected as the source
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