Information Technology Reference
In-Depth Information
Chapter 10
IP telephony networks can be complex, and for that reason, it is essential to have a good grasp of the tools that can be used to manage
and troubleshoot these networks.
A range of tools can be used to manage and troubleshoot IP telephony networks, including the following:
CDR Analysis and Reporting (CAR) tool:
Allows the analysis of Call Detail Records (CDR). CDRs usually are used for
accounting or billing, but they can help provide some pointers when troubleshooting.
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CAR can be used to generate user, system, and device reports containing information on call volumes, quality of service
(QoS), billing, gateways, and so on.
Dialed Number Analyzer (DNA):
Can test dial plans for errors, and it allows the analysis of internal-to-internal and internal-
to-external calls.
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Quality Report Tool (QRT) Viewer:
Can be used to view reports relating to call quality that are generated by Cisco IP
phones. The generation of these reports requires that users press a softkey on their phones.
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Real Time Monitoring Tool (RTMT):
A plug-in that can be used on a remote workstation to view CUCM serviceability
information in real time.
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It is possible to view information relating to elements such as memory, CPU, phones, gateways, calls, CTI (TAPI and JTAPI)
applications, voicemail, and so on.
System Diagnostic Interface (SDI) traces:
Otherwise known as CCM traces, SDI traces provide detailed diagnostic
information relating to CUCM call processing, including registration, digit analysis, and call flow. Trace files show devices,
IP addresses, MGCP messages, SCCP messages, H.323 messages, and so on.
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