Huawei U3900 User Manual page 26

Settings
Flip mode
Automatic
power-on
and
power-off
Power
saving
mode
Hearing
aid
Description
Enable or disable the

Open to Answer Calls
function.
Enable or disable the

Close to End Calls
function.
Enable or disable the

automatic power-on
and power-off
function.
Set the automatic

power-on and power-
off time.
Enable or disable power
saving mode. In power
saving mode, the keypad
backlight remains turned
off between 9:00 and
17:00.
Enable or disable the
hearing aid function.
Menu > Settings >
Phone > Flip
Menu > Settings >
Phone > Auto Power-
On and Power-Off
Menu > Settings >
Phone > Power-
Saving Mode
Menu > Settings >
Phone > Hearing Aid
25
Menu selection