The menu bar is a collection of blue buttons across the top of the MDT screen used for communications.
Menu & Home Buttons
Press the button to open the MDT Menu screen.
To open the MDT Home screen, press the home button.
The Menu & Home buttons are consistent across all major MDT screens, which is why the Home screen includes the Home button, and the Menu screen includes the Menu button.
The top-left area of the MDT displays the , , , and buttons. The operator uses these buttons for communication to and from dispatch, and for playing passenger safety announcements. See section Communications Menu Buttons.