Yealink SIP-T2XP Administrator's Manual page 409

Voice quality monitoring feature allows the IP phones to generate various quality
metrics for listening quality and conversational quality. These metrics can be sent
between the phones in RTCP-XR packets. These metrics can also be sent in SIP PUBLISH
messages to a central voice quality report collector. Two mechanisms for voice quality
monitoring are supported by Yealink IP phones:
RTCP-XR

VQ-RTCPXR

Note
Voice quality monitoring feature is applicable to IP phones running firmware version 73 or
later.
The RTCP-XR mechanism, complaint with
(RTCP-XR), provides the metrics contained in RTCP-XR packets for monitoring the quality
of calls. These metrics include network packet loss, delay metrics, analog metrics and
voice quality metrics.
Procedure
RTCP-XR can be configured using the configuration files.
Configuration
File
Details of Configuration Parameters:
phone_setting.rtcp_xr_report.enable
Description:
Enables or disables the IP phone to periodically (every 5 seconds) send RTCP-XR
packets to another participating phone during a call for call quality monitoring and
diagnosing.
Note: It is only applicable to IP phones running firmware version 73 or later.
Web User Interface:
None
<y0000000000xx>.cfg
Parameters
Configuring Advanced Features
RFC 3611-RTP Control Extended Reports
Configure RTCP-XR.
Parameters:
phone_setting.rtcp_xr_report.enable
Permitted Values
0 or 1
Default
0
391