Source note · Call quality metrics and MOS estimation
The RTCP cumulative number of packets lost is a 24-bit signed field that can be negative when more packets arrive than expected, for example because of duplicates.
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, cumulative number of packets lost
Cite this note
APA
WarmTransfer. (2026, September 24). Call quality metrics and MOS estimation: source note call-quality-metrics-rtp-cumulative-loss-signed. WarmTransfer. https://warmtransfer.net/knowledge/claims/call-quality-metrics-rtp-cumulative-loss-signed
BibTeX
@misc{warmtransfer-claim-call-quality-metrics-rtp-cumulative-loss-signed,
title = {Call quality metrics and MOS estimation: source note call-quality-metrics-rtp-cumulative-loss-signed},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/call-quality-metrics-rtp-cumulative-loss-signed},
note = {Source note call-quality-metrics-rtp-cumulative-loss-signed, checked 2026-09-24}
}