SYSTEM TESTS

TEST EXTERNAL ALERT (NIGHT SERVICE)

Place a test call to the attendant console to verify that the alerting device sounds when the attendant console is in the Night Service mode. If an alerting device has not yet been installed, connect a spare voice terminal or alerting device to the modular jack reserved for the alerting device.

1.At the attendant console, press the Night Service button.

The Night Service LED lights steadily.

2.At any voice terminal, go off-hook. Dial the CO trunk access code, and dial the number of a CO trunk that receives night service coverage.

3.Verify that the alerting device sounds.

4.At another voice terminal, go off-hook and dial the night service access code.

The alerting device ringing should stop.

The call should be picked up.

5.Verify transmission.

6.At both voice terminals, go on-hook.

7.Repeat Steps 2 through 6 for each night service trunk.

8.At the attendant console, press the Night Service button again and verify that the Night Service LED goes dark.

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ADTRAN 25 manual Test External Alert Night Service