Philips 636 User Manual page 4

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Pressing or will alternate between two op-
tions, such as Activate/Deactivate, On/Off, Increase/
Decrease a value, etc.
Browse carousels and lists until you reach the desired
feature or option. When navigating in a list, a scroll
bar located on the right hand side of the screen shows
your actual position in the list. With the navigation
keys, you can then select or adjust all the functions of
your phone as described in the relevant chapter of this
user guide.