Audio Features
184
RTCP-XR Configuration
The following table lists the parameters you can use to configure the RTCP-XR.
Parameter voice.rtcp_xr.enable
[1]
<y0000000000xx>.cfg
Description It enables or disables the phone to send RTCP-XR packets.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Web UI
Settings > Voice Monitoring > Voice RTCP-XR Report
Parameter voice.rtcp.enable
[1]
<y0000000000xx>.cfg
Description It enables or disables the phone to send RTCP packets.
Permitted
Values
0-Disabled
1-Enabled
Default
1
Parameter voice.rtcp_cname
[1]
<y0000000000xx>.cfg
Description It configures the cname of the RTCP packets.
Permitted
Values
String
Default
Blank
[1]
If you change this parameter, the phone will reboot to make the change take effect.
VQ-RTCPXR
The VQ-RTCPXR mechanism, compliant with
, sends the service quality metric reports contained in SIP
PUBLISH messages to the central report collector.
A wide range of performance metrics are generated in the following three ways:
l
Based on current values, such as jitter, jitter buffer max, and round trip delay.
l
Covers the time period from the beginning of the call until the report is sent, such as network packet loss.
l
Computed using other metrics as input, such as listening Mean Opinion Score (MOS-LQ) and conversational
Mean Opinion Score (MOS-CQ).
Topics
Voice Quality Reports
VQ-RTCPXR Display
Central Report Collector
Voice Quality Reports
Three types of quality reports can be enabled:
l
Session: Generated at the end of a call.
l
Interval: Generated during a call at a configurable period.
l
Alert: Generated when the call quality degrades below a configurable threshold.
Topic
