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Adjusting the brightness or contrast of the display
1. Press Avaya Menu.
2. Select Options & Settings or Phone Settings.
3. Press Select or OK.
4. Select Screen & Sound Options.
5. Press Select or OK.
6. Select Brightness or Contrast.
7. Press Change or OK.
8. Select Phone or an SBM24 Module.
9. Scroll to the right or left to adjust the brightness or contrast.
10. Press Save or OK.
Turning button click sounds on and off
1. Press Avaya Menu.
2. Select Options & Settings or Phone Settings.
3. Press Select or OK.
4. Select Screen & Sound Options.
5. Press Select or OK.
6. Select Button Clicks.
7. Press Change or OK to turn sounds on or off.
8. Press Save.
Turning error tones on or off
Your telephone beeps if you make a mistake or take an action that is not allowed. If you
do not want to hear error beeps, set your error tone to Off.
1. Press Avaya Menu.
2. Select Options & Settings or Phone Settings.
3. Press Select or OK.
4. Select Screen & Sound Options.
5. Press Select or OK.
6. Select Error Tones.
7. Press Change or OK to turn error tones on or off.
8. Press Save.
Turning large text on or off
1. Press Avaya Menu.
2. Select Options & Settings or Phone Settings.
3. Press Select or OK.
4. Select Screen & Sound Options.
5. Press Select or OK.
6. Select Text Size.
7. Press Change or OK to turn large text on or off.
8. Press Save.
About Options & Settings
12 Avaya one-X™ Deskphone Edition for 9640 IP Telephone User Guide