UI_770.book Seite 11 Mittwoch, 24. Oktober 2012 1:50 13
Using the UI 770
Switching between the headset and the handset
Press the headset/handset button
headset and the handset.
Button down: Handset is activated
Button up:
Muting the headset microphone
Press the mute button
Button down: Microphone is muted
Button up:
Adjusting the sound clarity of the headset speaker
With the UI 770, 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 sound clarity button
ground noise.
Button down: Speech intelligibility enhancement is activated
Button up:
Selecting the source – PC or telephone
Press the PC/telephone button
telephone.
Button down: PC is selected as the source
Button up:
If the PC is selected as the source, the mute button
volume control are deactivated. Consequently, you cannot
mute the headset microphone or adjust the volume of the
headset speaker using the UI 770 but you have to adjust the
volume via your PC.
Headset is activated
to mute the headset microphone.
Microphone is activated
Speech intelligibility enhancement is
deactivated
Telephone is selected as the source
to switch between the
to filter out annoying back-
to select the source – PC or
UI 770
and
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