AT&T 3.0 manual

Testing the System

If you hang up during any of these procedures, test mode ends automatically.

Keep the following in mind when using the speakerphone:

■If the Mute button is pressed before the Speaker button, the Mute LED cannot be turned off; it winks.

■The Mute and Speaker LEDs remain steady during test mode.

■The pressing of the Mute button is processed within the telephone.

■When the telephone test is originated from the Speaker button, every second press of the Mute button causes the Mute LED to flash off momentarily. Also, both the Mute and Speaker LEDs may occasionally remain on after disconnecting with the Speaker button.

■Press the fixed-feature buttons repeatedly to toggle the LEDs on and off.

To test the basic features of an MLX telephone, follow the steps below:

1Pick up the handset of the telephone you are testing and push an lCOM button in Key or Behind Switch mode or an SA button in Hybrid/PBX mode.

2When you hear dial tone, dial *00 to activate test mode.

You should hear a steady test tone over the handset and a ring burst over the speaker. The telephone’s red and green LEDs should be on.

3To test the line buttons, press any line button with two LEDs (red and green).

The diagnostic tone should stop, and the LEDs for that button should go off.

4Press the same line button repeatedly to toggle between the green and red LEDs. For a QCC, the display should show the name of the feature programmed on the button.

5To test a fixed-feature button with one LED, press the button.

The Feature and HFAI LEDs should turn off. The first press of the Speaker button should turn off the Mute LED. The second press of the Speaker button should turn off the Speaker LED.

7-4Initializing and Testing the System