Cisco Systems 30 VIP

Cisco IP Telephony Troubleshooting Guide for Cisco CallManager Release 3.0(1)

If the problem seems to be occurring only through a certain gateway, such as a

Cisco Access DT-24+, then the best course of action is to enable tracing and/or view the Call

Detail Records (CDR). The CDR files will give a Cause Of Termination (COT) that may help

determine the cause of the problem. See the CDR section in the Problem Categories section

above, or Appendix D for more information about CDRs.

Contents

Main Page Page Page Page Cisco IP Telephony Troubleshooting Guide for Cisco CallManager Release 3.0(1) 2000 Cisco Systems, Inc. 6 Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Cisco CallManager IP WAN Region1 Region2 A B C D E F Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Cisco IP Telephony Troubleshooting Guide for Cisco CallManager Release 3.0(1) 2000 Cisco Systems, Inc. 81 The following table provides field definitions for CDRs. Page Page Page Cisco IP Telephony Troubleshooting Guide for Cisco CallManager Release 3.0(1) 2000 Cisco Systems, Inc. 85 The following table provides field definitions for CMRs (diagnostic CDRs). Page Page Page Cisco IP Telephony Troubleshooting Guide for Cisco CallManager Release 3.0(1) 2000 Cisco Systems, Inc. 89 The following table provides values and descriptions for codec types. The following table provides a list of cause codes that may appear in the Cause fields.