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Cisco IP Telephony Troubleshooting Guide for Cisco CallManager Release 3.0(1)
© 2000 Cisco Systems, Inc.
1
Cisco IP Telephony Troubleshooting Guide
for Cisco CallManager Release 3.0(1)
Contents
Purpose ............................................................................................................................................ 4
Version ............................................................................................................................................ 4
Topology ......................................................................................................................................... 4
Documentation Checklist ............................................................................................................ 5
Glossary of Terms ........................................................................................................................... 6
Tools and Utilities to Monitor and Troubleshoot Cisco CallManager.......................................... 10
Cisco CallManager Administration Details .............................................................................. 10
Microsoft Performance.............................................................................................................. 11
Opening Microsoft Performance ........................................................................................... 11
Customizing Performance ..................................................................................................... 11
Microsoft Event Viewer ............................................................................................................ 12
Opening Event Viewer .......................................................................................................... 12
Detailed Information about Events ....................................................................................... 13
SDI Trace .................................................................................................................................. 13
SDI Trace Output .................................................................................................................. 13
Configuring Traces................................................................................................................ 14
SDL Trace ................................................................................................................................. 15
Enabling SDL Trace.............................................................................................................. 15
Disk Space Warning.............................................................................................................. 17
Sniffer Trace.............................................................................................................................. 18
Sniffer Trace Applications .................................................................................................... 18
Call Detail Records (CDR) and Call Management Records (CMR) ........................................ 18
Enabling or Disabling CDRs................................................................................................. 19
CDRs ..................................................................................................................................... 20
Diagnostic CDRs (Also Known As CMRs).......................................................................... 20
Problem Categories ....................................................................................................................... 21
Voice Quality ............................................................................................................................ 21
Lost or Distorted Audio......................................................................................................... 21
i Button Help ......................................................................................................................... 24
Crackling ............................................................................................................................... 25
Check Your Loads................................................................................................................. 25
Echo....................................................................................................................................... 25
Check Your Loads............................................................................................................. 26
One-Way Audio or No Audio ............................................................................................... 26
MTP and One-Way Audio .................................................................................................... 27
Phone Resets ............................................................................................................................. 27
Dropped Calls............................................................................................................................ 28
Check Your Loads................................................................................................................. 31
Cisco CallManager Feature Issues ............................................................................................ 31
Codec/Regions: Codec Mismatch ......................................................................................... 31
Locations ............................................................................................................................... 32