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DEFINITY ECS Release 8.2 Maintenance for R8.2csi
555-233-119 Issue 1
April 2000
Maintenance Objects
3-1055TBRI-TRK (TN2185 ISDN Trunk-Side BRI)
3
Call State Audit Test (#257)
This test is nondestructive. This test performs a call state audit on an ISDN
B-Channel, and upon successful completion, guarantees that both sides of the
interface are in a consistent call state for connections using the B-Channel. The
test can be helpful when trying to clear a hung call. If the internal call state data
to the near-end switch is different from that of the far-end switch,
the call will be
torn down
.
The test passes if the audit is successful.
The test fails if the board is not inserted, there is an internal system error, or if a
reply was not received within a certain amount of time.
The test aborts if the signaling link is disconnected, the request is already active,
or if the B-Channel is in an Out-Of-Service state.
1114 ABORT The signaling link is in a transitional state.
1. Retry the command at 1-minute intervals a maximum of 5 times.
1116 ABORT The trunk is not in a service state which is appropriate for running the test.
This test is only performed in the OOS/FE state.
1117 ABORT A service state audit message is outstanding.
1. Wait two minutes and then try again.
2100 ABORT Could not allocate the necessary system resources to run this test.
1. Retry the command at 1-minute intervals a maximum of 5 times.
FAIL Internal System Error.
1. Retry the command at 1-minute intervals a maximum of 5 times.
PASS Wait 4 minutes and then check the Error Log for any new errors of type
3073. If there are none, then both sides of the ISDN connection agree on
the service state; the negotiation succeeded. If there is a new 3073 error,
then the negotiation failed (the far-end switch twice failed to respond within
2 minutes). The switch automatically retries every 15 minutes. If the trunk
was initially in-service, it is now placed in the maintenance/far-end state.
Incoming calls will be accepted, but no outgoing calls can be originated. If
an incoming call is presented, another Service State Audit is immediately
performed in an attempt to put the TN2185 ISDN Trunk-Side BRI Channel
in the proper state.
Table 3-469. TEST #256 Service State Audit Test — Continued
Error
Code
Te st
Result Description/ Recommendation
Continued on next page