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Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series IP Phones
398
Topic
RTCP-XR Configuration
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 IP 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 IP 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 IP phone will reboot to make the change take effect.
VQ-RTCPXR
The VQ-RTCPXR mechanism, compliant with RFC 6035 , 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:

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).
Topics