Excessive Line Noise On Voice And Data Calls; Smdr) Reports Do Not Include Calls Across The Network - Lucent Technologies MERLIN LEGEND Release 6.0 Maintenance And Troubleshooting Manual

MERLIN LEGEND Communications System Release 6.0
Maintenance and Troubleshooting 555-660-140
Central Office and Network Problems

Excessive Line Noise on Voice and Data Calls

If the routing is correct, contact the service provider. If the service provider
instructs you to do so, call the Lucent Technologies Helpline at 1 800 628-2888;
consultation charges may apply.
Excessive Line Noise on Voice and
Data Calls
Possible Cause: Clocks are not properly synchronized.
What to Do: The coordinating system manager should check error logs at
problem systems. If slips are occurring at a high rate or an alarm was raised,
clock synchronization is a problem. The coordinating system manager should
then check the programming for the PRI tandem trunk(s) and/or PSTN digital
facilities that carry the calls. A single clock source is used for all networked
systems so that calls are properly synchronized. For details about clock
synchronization in a network, see "Clock Synchronization" in Chapter 5 of
Network Reference . To program clock synchronization, see Chapter 4 of
System Programming .
If the clock source is correct, ensure that the specified port is functioning
properly and has an in-service facility connected to it.
If this does not solve or explain the problem, call the Lucent Technologies
Helpline at 1 800 628-2888; consultation charges may apply.
Station Message Detail Recording
(SMDR) Reports Do Not Include
Calls across the Network
SMDR reports may report calls using more than one call record on more than
one system. Depending upon how SMDR is programmed and how calls are
routed, you may need to consult several SMDR records to trace a call that is
Issue 1
February 1998
Page 5-69