Testing the Telephone's Lights and Display

1. With the telephone idle (on-hook), press and release the Mute button, then press the following numbers on the dialpad: 8 3 7 8 # (which stand for TEST).

The display indicates the self-test has started. If the test is successful, the message “Self test Passed #=end” displays. If the test is not successful, the message “Self test Failed #=end” displays instead.

2. Press # to return to the Phone screen.

If nothing appears on the display and the phone is receiving power, your phone might need to be replaced. Contact your System Administrator for assistance or additional troubleshooting information.