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DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Maintenance Object Repair Procedures
Page 10-839ISDN-TRK (DS1 ISDN Trunk)
10
Whenever a circuit translates to an ISDN-PRI trunk during a Long Test Sequence,
an outgoing test call is invoked. If the B-channel is unrestricted (B8ZS or HDB3)
the default duration of the test call is 8.6 seconds. Otherwise, if the B-channel is
restricted (ZCS) the default duration of the test call is 9.4 seconds. Once the test
call completes, the bit error rate is retrieved from the Maintenance/Test Digital
Port. A bit error rate greater than zero is reported as a failure to the Manager I
terminal (MGRI). A failure indicates the need to run further diagnostics, such as
the test isdn-testcall command.
If no Maintenance/Test circuit pack exists, the outgoing ISDN-PRI test call is
established over a high speed data channel on the Network Control (NETCON)
circuit pack (DATA-BD).
Asynchronous Commands
You can start, query, and stop an outgoing test call by using the following
maintenance commands:
■ test isdn-testcall trunk-group-no/member-no [ minutes ]
This command enables you to start an outgoing ISDN-PRI test call for a
maximum of two hours (120 minutes).
■ status isdn-testcall trunk-group-no/member-no
This command displays the progress of the outgoing test call by reporting
the bit and block error rates of the tested B-channel specified by the "trunk
group no/member no" identifier.
■ clear isdn-testcall trunk-group-no/member-no
This command enables you to stop an outgoing test call already in
progress. The trunk-group-no/member-no identifier specifies the
B-channel used to stop the test call. The measurements are not cleared
until the next test call begins.
NOTE:
Only one trunk can be tested in a given port network, until the test call is
canceled or completes.
Table 10-237. TEST #258 ISDN TEST Call
Error
Code
Test
Result Description/ Recommendation
4 ABORT There is a problem with the Processor Interface Link.
1. Refer to PI-LINK (Processor Interface Link).
Continued on next page