Is there a way to test all the LEDs on an MLS-18D Telephone? I'm hoping for some function or test that will light up all the LEDs at once so I know they are all working.
With the handset on hook, press and hold the "#" button for about 3 seconds. While still holding the button down, lift the handset and release the button. This should illuminate all LEDs and cause the phone to ring. Hangup the handset to stop the test.
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