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English
Emergency Button
Press and hold this key from any mode to enter the Emergency
mode.
When the MTH650 is powered down, press and hold this button to
power On in Emergency mode.
Function Keys
Side Keys
Use these keys for audio volume level adjustment when the rotary
knob is programmed to List. Otherwise, these 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 MTH650 supports the one-touch feature that allows you to
select or activate commonly used features by pressing and holding
a numeric key.
The LED Status Indicator
The LED indicator shows the states of your MTH650.
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.
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.
For information on the function assigned to each Side or Numeric key please
refer to your service provider.
Indicator Status
Solid green In use
Flashing green In service
Solid red Out of service
Flashing red Connecting to a network/entering DMO
Solid orange Transmit Inhibit (TXI) in service
Flashing orange Incoming call
No indication Switched off
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