11
English
Function Keys 
Side Keys
The Rotary knob and Side key programming are paired:.
 When the Rotary knob is programmed to Volume, the Side keys 
support the one-touch feature that allows you to select or activate 
commonly used features by pressing and holding a single key.
Numeric Keys
The MTH800 supports the one-touch feature that allows you to 
select or activate commonly used features by pressing and holding 
a Numeric key. 
Speaker Control Key
Press to activate the earpiece (low audio) or speaker (high 
audio), depending on the menu settings.
The required time you need to press the Emergency button is set as default 
to 0.5 seconds. This time may be set, however, by your Service Provider.
For information on the function assigned to each Side or Numeric key, 
please refer to your Service Provider.
The required time you need to press the Side or Numeric keys to activate a 
one-touch function is set as default to 1 second. This time may be set, how-
ever, by your Service Provider.
Rotary Knob Programming Side Key Programming
Dual Control
(1)
: Backlight On/Off 
: Screen Saver On
List Control
: Volume Up
: Volume Down
Volume Control Programmed to a one-touch function
(1) Default programming
6802972C30.book  Seite 11  Montag, 12. Juli 2004  4:11 16