Configuring Audio Features
775
To configure RTCP-XR feature via web user interface
:
1.
Click on
Settings
->
Voice Monitoring
.
2.
Select the desired value from the pull-down list of
Voice RTCP-XR Report
.
3.
Click
Confirm
to accept the change.
A dialog box pops up to prompt that the settings will take effect after a reboot.
5.
Click
OK
to reboot the phone.
VQ-RTCPXR
The VQ-RTCPXR mechanism, compliant with
, sends the service quality metric reports
contained in SIP PUBLISH messages to the central report collector. Three types of quality reports
can be enabled:
Session
: Generated at the end of a call.
Interval
: Generated during a call at a configurable period.
Alert
: Generated when the call quality degrades below a configurable threshold.
A wide range of performance metrics are generated in the following three ways:
Based on current values, such as jitter, jitter buffer max and round trip delay.
Covers the time period from the beginning of the call until the report is sent, such as
network packet loss.
Computed using other metrics as input, such as listening Mean Opinion Score (MOS-LQ)
and conversational Mean Opinion Score (MOS-CQ).
To operate with central report collector, IP phones must be configured to forward their voice
quality reports to the specified report collector. You can specify the report collector on a
per-line basis.
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Страница 887: ...Troubleshooting 865 The phone begins rebooting Any reboot of the phone may take a few minutes ...