Voice Quality Statistics For Mivoice Ip Phones - Mitel MiVoice Business Voice Quality And Troubleshooting Manual

5. Divide the maximum round trip time in half to obtain the end-to-end delay time. If the
end-to-end delay time exceeds 80 ms, delay is likely a cause of any voice quality issues.

VOICE QUALITY STATISTICS FOR MIVOICE IP PHONES

You can view jitter, packet loss, and latency (delay) statistics for MiVoice IP Phones in the Voice
Quality Statistics form in the MiVoice Business System Administration Tool. The form also
lists other useful information such as the device type of the endpoint, the last CODEC used in
the call, the IP address of the subnet and the IP address of the endpoint.
The following forms in the MiVoice Business System Administration tool support voice quality
statistics:
• Voice Quality Monitoring
• User Authorization Profiles
• Voice Quality Statistics.
To view the voice quality statistics for a call from an IP phone:
1. Log into the MiVoice Business System Administration Tool.
2. In the Voice Quality Monitoring form, ensure that Voice Quality Monitoring is set to True.
3. In the User Authorization Profiles form ensure that the User Profile associated with the
MiVoice Enterprise Manager has "Application" enabled in the Access field. This allows
access to the MiXML management.
4. Place a call from the IP phone that is experiencing the voice quality issue. If the problem
is intermittent, ensure that you view the statistics while the problem is present on the call.
Because the data network is dynamic, you may not see evidence of a voice quality issue
if you check the statistics during favorable network conditions (for example, during a period
of low traffic).
Figure 11: Ping Test Example
Using Tests and Diagnostic Tools
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