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ATM-BCH (ATM B-Channel Trunk)
Issue 4 May 2002 10-203 555-233-123
ISDN Test Call Test (#258)
This non-destructive test performs a far-end looparound test over an ATM-BCH
trunk if
■
the trunk is IN-SERVICE, MAINTENANCE/NEAR-END, or
OUT-OF-SERVICE/NEAR-END
■
no calls are active on the trunk
■
the system uses country protocol 1 (including US) or the far-end has
looparound capability
The test sets up a call to a far-end switch over the ATM-BCH trunk. Then the
digital port on a TN711D Maintenance/Test circuit pack sends a bit pattern to the
far-end and back. If the received pattern matches that sent, the test passes. If
there are differences, it fails.
Table 10-71. TEST #257 Call State Audit Test
Error
Code Test
Result Description/Recommendation
1018 ABORT Maintenance disabled
1. Enable maintenance by entering y in the
Maintenance
Tests?
field on page 2 of the change trunk-group form.
1019 ABORT Audit already in progress
1. Wait 2 minutes, and try again.
1113 ABORT Signaling link failed
1. Check the results of Test #255 (Signaling Link State Check).
1114 ABORT Signaling link in transitional state
1. Retry the command up to 5 times at 1-minute intervals.
1116 ABORT Trunk out-of-service
1. Check the trunk service state (status trunk grp#/mbr#).
2100 ABORT Could not allocate needed resources
1. Retry the command up to 5 times at 1-minute intervals.
FAIL Internal system error
1. Retry the command up to 5 times at 1-minute intervals.
PASS 1. Wait 4 minutes, then check the Error Log for call-state
mismatches. If a call state mismatch is found, the call is torn
down.
Continued on next page