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Emergency Button
Press and hold this button to enter Emergency Mode.
When the MTM800 Enhanced is powered down, press and hold this 
button to power On in Emergency Mode or in standard mode 
(as programmed).
Function Keys
Each of the Function keys has a default function which is activated 
upon a short press.
• External Alarm Key 
Press 
 to turn on or off the External Alarm (Horn & Lights) 
• Speaker Control Key 
Press to switch the speaker on/off.
• Backlight Control Key 
Press   repeatedly to select one of the five predefined backlight 
and LED intensity profile.
Additionally, your Service Provider can program One Touch 
functions, activated by a long press, to each function key.
Numeric,   and   Keys
The MTM800 Enhanced supports the one-touch feature that allows 
you to select or activate commonly used features by pressing and 
holding an assigned key.
One Touch Private Call
The MTM800 Enhanced supports the one-touch private call if it is 
set by the Service Provider. User can dial the last group call 
originator number via pressing the assigned button. 
The required time you need to press the Numeric,   or   keys 
to activate a one-touch function is set as default to 1 second. This 
time may be set, however, by your Service Provider.