C. BUTTONS AND THEIR FUNCTIONS
Before going through the following keypad functions, it is a good idea to understand multiple
functions may be assigned to a single button in order to reduce buttons cluster. To some buttons,
short and long pushes on one button give you different functions in different mode. Pay attention to
the following description regarding long and short push. Short push means push and release
immediately. Long push means push and hold for approximately 2 seconds.