Source note · Call quality metrics and MOS estimation
The RTCP fraction lost field is an 8-bit fixed-point value giving the proportion of packets lost since the previous report, not since the start of the call.
Checked 2026-09-24
- Vendor
- IETF
- Product
- RTP
- Subsystem
- RTCP receiver report
- Deployment
- any
- Region
- not restricted
- Release range
- RFC 3550
- Checked
- 2026-09-24
Sources
- RTP: A Transport Protocol for Real-Time Applications — IETF / RFC Editor · tier 1 standards and regulators · Section 6.4.1, fraction lost
Cite this note
APA
WarmTransfer. (2026, September 24). Call quality metrics and MOS estimation: source note call-quality-metrics-rtp-fraction-lost. WarmTransfer. https://warmtransfer.net/knowledge/claims/call-quality-metrics-rtp-fraction-lost
BibTeX
@misc{warmtransfer-claim-call-quality-metrics-rtp-fraction-lost,
title = {Call quality metrics and MOS estimation: source note call-quality-metrics-rtp-fraction-lost},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/call-quality-metrics-rtp-fraction-lost},
note = {Source note call-quality-metrics-rtp-fraction-lost, checked 2026-09-24}
}