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ISDN-TRK (DS1 ISDN Trunk)
Issue 5 October 2002
1309
555-233-119
ISDN-PRI Trunk Service States
The following chart summarizes each of the different DS1 ISDN Trunk service
states that can result when the status trunk <trunk_group/trunk_member>
command is issued.
NOTE:
Refer to ‘‘Troubleshooting Features’’ in Chapter 1, ‘‘Maintenance for CSI
systems’’ for a layered approach to processing ISDN-PRI problems.
Table 315. ISDN-PRI Trunk Service States (Test #161 Loop Around Test)
Service State Alarm* Possible Cause Possible Solution
out-of-service/NE Warning Trunk is demand busied out. Enter release trunk
grp#/mbr#.
Minor NPE Crosstalk Test (#6)
failed. Replace DS1/UDS1 circuit
pack.
None DS1 or UDS1 circuit pack
lost its signal. Is the DS1/UDS1 circuit pack
or cable removed? Is the
far-end switch restarting?
Check circuit pack using
procedures in DS1-BD or
UDS1-BD.
out-of-service/FE Warning Unadministered far-end Administer corresponding
trunk on far-end switch.
Warning The far-end trunk is busied
out. Check the status of the
far-end switch.
pending-in-service,
pending-maint None Maintenance message was
sent and the switch is
waiting up to 2 min. for a
reply from the far-end. Wait 2 minutes and check
service state after the
pending state has cleared.
maint-NE None ISDN test call in progress
(test trunk long and test
isdn-testcall commands) Wait several minutes for test
to finish and check status
again.
None System link has been busied
out by command. Check link status. Release
link with release link link#.
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