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Key, Knob, and Button Overview
On-Off/End/Home Key
• Press and hold to turn the MTP850 Ex/MTP810 Ex 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
Menu key has 2 functions. Press to enter:
• The menu (when not in the menu).The MTP850 Ex/MTP810 Ex
menus allow you to control your MTP850 Ex/MTP810 Ex
settings.
• Context sensitive menu (when icon is on and while not on
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.
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