Source note · Troubleshooting audio delay and talk-over on voice calls
Halving an RTCP round-trip figure gives only the network part of one-way delay and assumes a symmetric path; mouth-to-ear delay also includes end-system delay such as codec and jitter buffer, so it will be higher than RTT/2.
inferred · Checked 2026-10-02
- Vendor
- not restricted
- Product
- not restricted
- Subsystem
- RTCP measurement
- Deployment
- any
- Region
- not restricted
- Release range
- current as of 2026-10-02
- Status
- inferred
- Checked
- 2026-10-02
Sources
- RTP Control Protocol Extended Reports (RTCP XR) — IETF (RFC Editor) · tier 1 standards and regulators · Section 4.7, round trip delay versus end system delay fields
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting audio delay and talk-over on voice calls: source note call-latency-troubleshooting-rtt-half-excludes-end-system. WarmTransfer. https://warmtransfer.net/knowledge/claims/call-latency-troubleshooting-rtt-half-excludes-end-system
BibTeX
@misc{warmtransfer-claim-call-latency-troubleshooting-rtt-half-excludes-end-system,
title = {Troubleshooting audio delay and talk-over on voice calls: source note call-latency-troubleshooting-rtt-half-excludes-end-system},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/call-latency-troubleshooting-rtt-half-excludes-end-system},
note = {Source note call-latency-troubleshooting-rtt-half-excludes-end-system, checked 2026-10-02}
}