32
Basic settings
Press the R-key and the redial key at the same time. (The
„P“ for „Programming-mode“ appears in the display.)
Select the function „Display contrast“ using the arrow keys
and confirm with the
key.
Change contrast level via the numeric key pad (key 0 - 9)
and confirm with the
key.
Select another function using the arrow keys or exit the
programming menu with the C-key.
Key tone
If the key tone is activated, each press on a numeric key will be confirmed by a
tone. The key tone can be switched on or off. In factory pre-set, the key tone is
switched on.
Press the R-key and the redial key at the same time. (The
„P“ for „Programming-mode“ appears in the display.)
Select the function „Switch key beep off“ using the arrow
keys and confirm with the
key.
Select another function using the arrow keys or exit the
programming menu with the C-key.
Remark:
If you want to switch the key tone on, select „Switch key beep on“ within the
menu.
