Instruction manual

MERLIN LEGEND Communications System Release 5.0
Maintenance and Troubleshooting
555-650-140
Issue 1
June 1997
Control Unit Problems
Page 4-92
800 NI-BRI Module Problems
Table 4-7 Continued
Continued on next page
Result
Code
Description Corrective Action
DN
(Release
4.1 and
later)
Incorrect DN
administration
The facility is established in layers 1, 2, and 3. Check that
the facility is administered with the DN provided by the
LEC and rerun the test. If the error persists, contact the
LEC.
If the facility is part of an MLHG, check if the MLHG DN is
absent. If the MLHG DN is absent, administer it and rerun
the test.
MLHV
(Release
4.1 and
later)
■ No voice
hunting, or
■ Incorrect
voice
MLHG DN
and DN if
MLHG DN is
present, or
■ Voice
hunting was
observed
with no
MLHG DN
The facility is correctly administered and established with
layers 1, 2, and 3 with functioning voice capabilities.
The possible causes for this error are:
■ Incoming voice calls using the MLHG DN are not
possible, but incoming voice calls using the DN are
possible.
If voice hunting is expected, with the administered
MLHG DN, check that the facility is administered with
the MLHG DN provided by the LEC and rerun the
test. If the error persists, contact the LEC.
■ Incoming voice calls using either the MLHG DN or
DN are not possible, and both the MLHG DN and DN
have been verified to be incorrect.
Readminister the MLHG DN or DN and rerun the test.
If the error persists, contact the LEC.
■ MLH is not expected
The MLHG DN is not administered and voice calls to
the facility using the DN are terminated at the facility
as a hunt call. Contact the LEC.