• Context sensitive menu (when
Idle screen) 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 control (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 Emergency Mode.
When the MTP850 is powered down, press and hold this button to
power On in Emergency Mode or in standard mode (as
programmed).
Function Keys
For information on the function assigned to each Side, Numeric, *
or # keys, please refer to your Service Provider.
The required time you need to press the Side, 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.
icon is on and while not on
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