DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures

9-972ISDN-TRK (DS1 ISDN Trunk)

9

Figure 9-53. Outgoing ISDN-PRI Test Call

Synchronous Test Calls

You can initiate a synchronous outgoing test call b y entering one of the following

commands:

■test trunk group#/member# long [repeat #]
■test board UUCSS long [repeat #]
■test port UUCSSpp long [repeat #]

The above test sequences incl ude a test-call for ISDN-PRI trunks. The duration of

the test call is 8.6 seconds for If un restricted (B8ZS) B-channels and 9.4 sec onds

for restricted (ZCS) B-channels. The test fails if the bit error rate retrieved from the

Maintenance/Test digital port is greater tha n 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 for a maximum of

120 minutes. Default times are as above. Only one trunk p er port network

can be tested at one time.

DS1 Facility
ISDN Trunk
(B-Channel)
UDS1
TN464
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
M/T
TN771
G3r Switch originating test call
TDM Bus
Far-End Switch
with test call
terminating capability
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.
.
.
.
.
.
.
.
.
.
.
.
.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.
.
.
.
.
.
.
.
.
.
.
.
.
.