Administrator’s Guide for SIP-T2_Series_T4_Series IP Phones
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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
The RTCP-XR mechanism, complaint with RFC 3611-RTP Control Extended Reports
(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.