Manual

10
Switching between the headset and the handset
왘 Press the button  to switch between the headset and
the handset.
Button down: handset is activated
Button up: headset is activated
Muting the headset microphone
왘 Press the button  to mute the headset microphone.
Button down: microphone is muted
Button up: microphone is activated
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.
왘 Press the button  to filter out annoying background
noise.
Button down: speech intelligibility enhancement
system is activated
Button up: speech intelligibility enhancement
system is deactivated
Selecting the source — PC or telephone
왘 Press the button  to select the source — PC or tele-
phone.
Button down: PC is selected as the source
Button up: telephone is selected as the source
UI_765.book Seite 10 Donnerstag, 19. Februar 2009 6:03 18