Lucent Technologies 555-233-119 Home Theater Server User Manual


  Open as PDF
of 1872
 
DEFINITY ECS Release 8.2 Maintenance for R8.2csi
555-233-119 Issue 1
April 2000
Maintenance Objects
3-752ISDN-TRK (DS1 ISDN Trunk)
3
ISDN Test Call Test (#258)
This test performs a far-end loop around to a far-end switch over an ISDN trunk.
The trunk’s service state must be in-service, maint-NE, or out-of-service/NE, and
no call can be active on the trunk. The test call can be initiated as part of a long
test sequence, or as an individual test, as described below. This test is valid only
for systems using country protocol 1 (including US), or when the far end has
loop-around capability.
A test call connection is established to a far-end switch over the ISDN trunk to be
tested. The digital port on a TN711D Maintenance/Test circuit pack generates a
test-pattern bit stream which is sent to the far-end switch and echoed back. The
received pattern is then compared to the sent pattern and checked for errors that
indicate a loss of integrity on the communications path.
If a test call is running when scheduled maintenance starts, the green LED is
turned off. To determine if a test call is still running, use the
list isdn-testcall
and
status isdn-testcall
commands. A lit yellow LED on the Maintenance/Test circuit
pack also indicates that a test call is running.
1113 ABORT The signaling link has failed, so the system cannot send any messages on
behalf of this trunk.
1. Check the results of Test #255 (Signaling Link State Check).
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 in an out-of-service ISDN service state.
1. A call cannot be present if the trunk is in an ISDN out-of-service state,
so a call state audit would be inappropriate. No action necessary. (Use
the status trunk
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 This switch sent a call state auditing message to the far-end switch to verify
the state of the call active on this trunk. If a call state mismatch is found,
then the call will be torn down within two minutes. If no call was active, then
no message was sent.
Table 3-317. TEST #257 Call State Audit Test — Continued
Error
Code
Te s t
Result Description/ Recommendation
Continued on next page