Avaya S8700 Maintenance Manual page 1729

ISDN-TRK (DS1 ISDN Trunk)
The previous test sequences include a test call for ISDN-PRI trunks. The duration
of the test call is 8.6 seconds for unrestricted (B8ZS) B channels and 9.4 seconds
for restricted (ZCS) B channels. The test fails if the bit error rate retrieved from
the Maintenance/Test digital port is greater than 0. When this occurs, you will
need to perform further diagnostics, such as the test isdn-testcall command
described below.
Asynchronous Test Calls
You can start, query, and stop an outgoing test call by using the following
maintenance commands:
test isdn-testcall group#/member# [minutes #]
This command initiates an outgoing ISDN-PRI test call up to 120 minutes.
Default times are as above. Only one trunk per PN can be tested at one
time.
status isdn-testcall group#/member#
This command displays the progress of the outgoing test call by reporting
bit and block error rates of the tested B channel.
clear isdn-testcall group#/member#
This command terminates an outgoing test call already in progress.
Measurements already collected are not cleared until the next test call
begins.
A PASS of the asynchronous test indicates only that the test call was successfully
established. Use the status and list commands to get the results of the test.
NOTE:
Before attempting to make an ISDN-PRI test call to the public network (that
is, the network is the far end), make sure that test call service is provisioned
by the network. The user must subscribe to Test Type 108 service and have
the correct far-end test call number administered on the trunk group form for
the call to be allowed.
Table 8-400. Test #258 ISDN Test Call
Error Test
Code Result Description / Recommendation
4 ABORT There is a problem with the Signaling Channel.
1. Consult the procedures for the ISDN-PRI Signaling Group (ISDN-SGRP).
555-233-143
Further information may also be obtained by consulting the procedures for
the ISDN-PRI Signaling Channel (ISDN-LNK).
Continued on next page
Issue 1 May 2002 8-1007