Lucent Technologies MERLIN LEGEND Release 6.1 Maintenance And Troubleshooting Manual page 207

MERLIN LEGEND Communications System Release 6.1
Maintenance and Troubleshooting 555-661-140
800 NI-BRI Module Problems
The red LED next to this button should be on and steady. If not, check
that the BRI line has been correctly assigned to this button.
Go off-hook by lifting the handset or pressing the speakerphone
button.
The red and green LEDs on this button should be on and steady. A dial
tone should be heard. If not, record that the outgoing voice call test has
failed.
Dial the destination number. (In a Centrex environment, it is
necessary to dial a 9 before the destination number.
Verify the following results and note any failures:
Dial tone should be off after the first digit is dialed.
Verify that the originating end hears ringback after the last digit is
dialed and that the destination phone is ringing.
If either indication is absent, check that the dialed digits are those
of the destination Directory Number (DN).
If the destination telephone can display calling party number,
verify that the DN of the BRI line under test is displayed correctly.
If not, record that the calling party information displayed is either
incorrect or absent at the destination telephone.
Answer the call at the destination telephone and verify the
connection.
Disconnect the call at either the originating or receiving end.
Verify that the green LED next to this button turns off and the connection
is removed.
Incoming Voice Call Test
Place a voice call from a known working telephone to the BRI line under test.
NOTE:
The 800 NI-BRI module must be restored (removed from the
Maintenance-Busy state) before performing this test. See
Module'' on page 4-109.
Issue 1
August 1998
Page 4-95
''Restoring the