To adjust the contrast on the display of your Polycom 650 SoundPoint phone to a comfortable level:

  • Press Menu.
  • Select Settings followed by Basic, Contrast.
  • Press the Up Arrow or Down Arrow soft keys to increase or decrease the display contrast. You can also use the volume keys to increase or decrease the diplay contrast.
  • Press the Ok or Cancel soft keys to accept or cancel changes.
  • Press Menu or the Exit soft key repeatedly to return to the idle display.

Polycom SoundPoint 650 Display Contrast