5620user
4620/5620 Phone User Guide Page 20
IP Office Issue 2f (6th December 2005)
Contrast Control On first-time startup, the phone's display area contrast is set to a mid-level. Should you need to adjust it
to better suit your work environment and lighting, 15 contrast levels are available.
NOTE: You may not be able to distinguish between all 15 contrast level settings. Some of the upper
and/or some of the lower contrast level settings may appear identical to adjacent settings. This is normal.
To adjust the contrast level:
1. Press Option) and then select Contrast Control.
2. To adjust the contrast, use or until you reach the desired contrast level. ( symbols
provide visual confirmation of the current level.)
3. Save the contrast level you set by pressing the Save, or, to restore the previous setting
without changing the contrast, press the Cancel.
Allows you to log your telephone off to prevent unauthorized use during an absence, or for privacy
purposes
• CAUTION: Logging off deletes all call log entries and returns any options you may have changed
to their default values.
To log your phone off:
1. Press Options and then select Log Off.
2. Select Yes to un-register your phone from the IP Office, delete all Call Log entries and
returns any options you may have configured to their default values.
3. Selecting No returns you to the main Option menu; your phone remains logged on to the
network and your Call Log and options values remain unchanged.
When your phone not registered on the phone system, the top line displays "Extension=*."
To reinstate your phone following a log off:
1. The telephone screen displays your extension number. Press the Hash (#) key. If the screen
does not display your extension number, use the dialpad to enter the number, then press the
Hash (#) key.
2. The display prompts for entry of your password. Using the dialpad, enter your PBX/switch
Password then press the Hash (#) key.
3. The phone is now ready for use.