LOCKING THE MDR MOBILE RADIO
The user may choose to lock the radio by pressing the key and then
the key. The lock status indicator will be displayed. If the unit is turned off
and then on again while it is locked, [- -LOCK- -] will be displayed. In this mode
no calls can be originated or received. This feature is operational only if a lock code
is entered during initial programming by the system operator. Lock codes can be 1
to 7 digits long. The lock feature is only operational when a call is not in progress.
UNLOCKING THE MOBILE
After the mobile has been locked the user may unlock the mobile by keying in
the lock code. If an incorrect digit is entered simply start over with the correct code.
If the lock code is forgotten, contact the system operator.
BACKLIGHT
The backlight function can be toggled ON or OFF by pressing the
key and then the key. The intensity of the backlight cannot be changed
EXTERNAL SPEAKER
To enable the external speaker, press the key and then the
key. Toggling this function provides the user with the capability to have private
conversations or allow other passengers in the vehicle to hear the conversation. After
power ON, the external speaker is enabled while in conventional mode and disabled
during trunked mode.
CALL HOLD (MUTE)
The user can Enable or Disable the microphone, so that the called party cannot
hear your conversation, by pressing the key and then the key.
This feature is only available in duplex operation.
SIMPLEX OPERATION
The user can choose to terminate duplex operation and still maintain the inter-
connect call in progress by pressing the key and then pressing the
key. This returns the radio to the simplex mode of operation. To return to
duplex, the user can press the key.
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