Troubleshooting
Troubleshooting ISDN-BRI / ASAI
212
Maintenance Procedures
December 2003
Figure 61: Processing of PRI endpoint problems (page 1 of 2)
Troubleshooting ISDN-BRI / ASAI
Troubleshooting ISDN-BRI/ASAI problems can be a complex and involved procedure. The reason for
this is that ISDN-BRI devices communicate with the server over the packet bus, as opposed to the TDM
bus. Therefore, it is possible for another component’s fault (related to the packet bus) to cause problems
with ISDN-BRI devices.
Figure 62, ISDN-BRI/packet-bus connectivity,
on page 213 shows the
connectivity of the packet bus as it applies to ISDN-BRI signaling.
Perform an in-depth
analysis of DS1
interface between the
switch and the
endpoint equipment,
including the premise
distribution wiring,
endpoint equipment,
and any other noise-
producing equipment.
YES
Are there
bit errors
over the DS1
interface between the
switch and the PRI
Terminal Adapter or
the ISDN endpoint
equipment. Use
‘‘list measurement’’
command.
NO
END
IF THE PROBLEM STILL EXISTS,
THEN ESCALATE
YES
IF PROBLEM STILL
EXISTS, THEN
ESCALATE
NO
FOLLOW REPAIR
PROCEDURE FOR
SYNC MO
Has a
synchronization
source been unstable?
System switching away
from it? Check
for alarms and
errors against
SYNC.
TRANSIENT FAILURES
FROM
PAGE 1
ALWAYS FAIL
CHECK THE HEALTH OF THE
APPLICATION EQUIPMENT
(FOR EXAMPLE, VIDEO CODEC)
AND THE HEALTH OF THE
DEFINITY NETWORK
Does
every
call fail or
are the
failings
transient?
A
Summary of Contents for CMC1
Page 1: ...Maintenance Procedures 555 245 103 Issue 1 1 December 2003 ...
Page 14: ...Contents 14 Maintenance Procedures December 2003 ...
Page 416: ...Additional maintenance procedures IP Telephones 416 Maintenance Procedures December 2003 ...
Page 426: ...Index X 426 Maintenance Procedures December 2003 ...