200 / Troubleshooting

Tip - Ensure that label by pressing see its function.

the function of a button matches its ƒ•‚and then the button to

You can end the telephone testing session anytime by pressing ®or ƒunless you are testing those buttons. The test feature times-out after 30 minutes of no activity.

Testing the telephone display

Use a display test if you suspect that one of the indicators on the telephone is not working.

1.Press ƒ°‚fi. The display reads Display test.

2.Press TEST or ˙to go ahead with a display test.

3.Adjust the contrast for the telephone display so you are able to see the test results clearly. Enter a number to change the contrast or press DOWN and UP.

4.Press OK or ˙to go ahead with the test.

During the test, the display should be filled with solid, dark blocks and all the indicators next to the buttons on the telephone should be turned on. Any Busy Lamp Field (BLF) or CAP modules that are attached to the telephone should be completely lit. You lose any information that was showing on the BLF before the test started.

Pressing any button ends the test.

Testing the telephone buttons

1.Press ƒ°‚fi, then £or NEXT.

2.Press TEST or ˙to go ahead with a button test.

Modular ICS 4.0 System Coordinator Guide

P0881591 Issue 01

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Nortel Networks Modular ICS 4.0 manual Testing the telephone display, Testing the telephone buttons