Source note · Call quality metrics and MOS estimation
RFC 6035 defines the SIP event package vq-rtcpxr with media type application/vq-rtcpxr; it SHOULD be used with SUBSCRIBE/NOTIFY and MAY be used with PUBLISH for backward compatibility.
Checked 2026-09-24
The event package SHOULD be used with the SUBSCRIBE/NOTIFY method; however, it MAY also be used with the PUBLISH method for backward compatibility.
- Vendor
- IETF
- Product
- SIP vq-rtcpxr
- Subsystem
- voice quality reporting
- Deployment
- any
- Region
- not restricted
- Release range
- RFC 6035
- Checked
- 2026-09-24
Sources
- Session Initiation Protocol Event Package for Voice Quality Reporting — IETF / RFC Editor · tier 1 standards and regulators · Section 4 (event package definition)
Cite this note
APA
WarmTransfer. (2026, September 24). Call quality metrics and MOS estimation: source note call-quality-metrics-sip-vq-event-package. WarmTransfer. https://warmtransfer.net/knowledge/claims/call-quality-metrics-sip-vq-event-package
BibTeX
@misc{warmtransfer-claim-call-quality-metrics-sip-vq-event-package,
title = {Call quality metrics and MOS estimation: source note call-quality-metrics-sip-vq-event-package},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/call-quality-metrics-sip-vq-event-package},
note = {Source note call-quality-metrics-sip-vq-event-package, checked 2026-09-24}
}