Instruction Manual

Cleaning the UI 770
12 | UI 770
Adjusting the volume of the headset speaker
왘 Use the volume control to continuously adjust the volume of
the headset speaker.
“Dynamic Volume Control” ensures that the volume set via the
volume control is kept constant, even if the other party speaks
with varying volumes.
Using the dictaphone output
The dictaphone output can be used to record a conversation in
both directions.
Cleaning the UI 770
Only use a soft – and, if necessary, slightly damp – cloth for
cleaning the UI 770. Do not use any solvents or cleansing agents
as these can damage the varnish of the UI 770.
If a problem occurs
Problem What to do
No dial tone Make sure that the headset/handset
button is in ”up” position.
Make sure that the handset is lifted.
Make sure that the cables are connected
correctly.
Make sure that the UI 770 is correctly
adjusted to your telephone.
Adjustment to
your telephone is
not possible
Your telephone does not meet standard
requirements. Please contact your dealer.
UI_770_EN.fm Seite 12 Freitag, 15. Januar 2016 11:11 11