10
English
Key, Knob, and Button Overview
On-Off/End/Home Key
•   Press and hold to turn the MTH800 On/Off.
•   Press to end calls.
•   Press to return to the Home display.
Soft Keys
Press or to select the option that appears in the display 
directly above the left or right soft key.
Menu Key
Press to enter:
•   The menu. The  MTH800 menus allow you to control your 
MTH800 settings.
•   Context Sensitive Menu (when icon is on) to view a list of 
items for the current menu.
Rotary Knob
The Service Provider can program the Rotary knob to one of the 
following uses:
1. Dual Control - the knob is used as both a Volume control and to 
scroll through Lists. Press the knob to toggle between Volume 
and List (default programming).
2. List Control   - the knob is used to scroll lists (e.g. Talk group 
lists)
 or menu items. In this case volume control is always via 
the Side keys.
3. Volume Control - the knob is used only as a volume control; 
turn clockwise to increase the audio volume level.
Press and hold the Rotary knob to lock it, press and hold it again to 
unlock. Powering Off also unlocks a locked Rotary knob.
Emergency Button
Press and hold this button to enter the Emergency Mode.
When the MTH800 is powered down, press and hold this button to 
power On in Emergency or in standard mode (as programmed).
  
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6802972C30.book  Seite 10  Montag, 12. Juli 2004  4:11 16