Source note · Call quality metrics and MOS estimation
In RFC 6035 QualityEst, the RLQ and RCQ R-factors range 0 to 120 and MOSLQ and MOSCQ are decimal values from 0.0 to 4.9.
Checked 2026-09-24
- 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 4.6.1, ABNF ListeningQualityR, ConversationalQualityR, MOS-LQ, MOS-CQ
Cite this note
APA
WarmTransfer. (2026, September 24). Call quality metrics and MOS estimation: source note call-quality-metrics-sip-vq-ranges. WarmTransfer. https://warmtransfer.net/knowledge/claims/call-quality-metrics-sip-vq-ranges
BibTeX
@misc{warmtransfer-claim-call-quality-metrics-sip-vq-ranges,
title = {Call quality metrics and MOS estimation: source note call-quality-metrics-sip-vq-ranges},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/call-quality-metrics-sip-vq-ranges},
note = {Source note call-quality-metrics-sip-vq-ranges, checked 2026-09-24}
}