Instruction Manual

FRESNL DE ENIT
Using the UI 770
UI 770 | 11
Switching between the headset and the handset
왘 Press the headset/handset 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 mute 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 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.
왘 Press the sound clarity button to filter out annoying back-
ground noise.
Button down: Speech intelligibility enhancement is activated
Button up: Speech intelligibility enhancement is
deactivated
Selecting the source – PC or telephone
왘 Press the PC/telephone button to select the source – PC or
telephone.
Button down: PC is selected as the source
Button up: Telephone is selected as the source
If the PC is selected as the source, the mute button and
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.
UI_770_EN.fm Seite 11 Freitag, 15. Januar 2016 11:11 11