Function Keys
5420/2420 Phone User Guide Page 21
IP Office Issue 6d (15th September 2005)
Adjusting the Display Contrast You can adjust the contrast level on the telephone display. You can choose from among fifteen levels of
contrast.
1. Press Exit to exit any other mode. Press Option.
2. Press Contrast. A menu with the current contrast setting appears.
3. Use the and keys to adjust the level of contrast.
4. When the contrast is set as required, either:
• Return to the options menu by pressing Done.
• Return to the call handling screen by pressing Exit.
Through the Option menu you can specify which types of calls should be included in the phone's call
log. See Setting Which Calls are Logged.
This option only contains one menu item: Stay in Speed Dial.
When set to Yes and you access your personal Speed Dial list the menu will remain displayed
regardless of any calls made or received.
1. Press Exit to exit any other mode. Press Option..
2. Press Miscellaneous and set Stay in Speed Dial to Yes.
Self test can be used to display information about the phone and to check operation of the lamps and
display. The information may be required by a telephone system maintainer.
1. Press Exit to exit any other mode. Press Option.
2. Press Self Test. The a screen of information appears.
3. Press and hold the Test key. The screen lines should all go black and all the phone lamps
should come on.
4. Do one of the following:
• To return to the options menu, press Done.
• To return to the call handling screen, press .
See Display Mode.