Contrast For The Octophon F640 Key Module - Deutsche Telekom Octophon F640 Operating Instructions Manual

Individual phone configuration
Step by step
Settings
User
Phone
Display
Key mod. contrast
Save & Exit
106

Contrast for the Octophon F640 key module

If an Octophon F640 key module is connected to your
Octophon F640, you can set contrast for it.
N
Press the key shown.
Select and confirm the option shown.
Select and confirm the option shown.
j
if nec.
Enter and confirm the User password.
Select and confirm the option shown.
Select and confirm the option shown.
Select and confirm the option shown.
h
g
Set and confirm the contrast.
Confirm the option shown.