AT&T MERLIN LEGEND Installation & Maintenance Manual page 236

Installation
2. Count the number of rings that occur at the covered
telephone before the covering telephone starts ringing. This
should be the same as the programmed number of rings.
Pick up the handset at the covering telephone and verify that
3.
you have good two-way communication.
4. Hang up at the covering telephone.
5. Check both individual and group coverage.
Test the Operator Console
Testing the operator console, whether it is analog or digital, is the
same as testing an MLX telephone, except for testing the
console's unique feature buttons. Follow these steps to test the
operator console:
1. Pick up the handset of the telephone being tested and push
an Intercom button (Key or Behind Switch mode) or an
System Access button (Hybrid/PBX mode). After receiving the
intercom dial tone, dial ∗00 to activate the 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.
2. To test the line buttons, press any line button with two LEDs.
The diagnostic tone should stop, and the LEDs for that button
should go off.
3. Press the same line button repeatedly to toggle the green and
red LEDs on and off.
4. To test a fixed-feature button with one LED, press the button.
The Feature and HFAI LEDs should go 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.
3-128 System Acceptance Test