G.114 says one-way delay of 400 ms should not be exceeded for general network planning, while noting that interactive voice degrades at much lower delays.

Checked 2026-09-24

Vendor
ITU-T
Product
G.114
Subsystem
delay planning
Deployment
any
Region
not restricted
Release range
G.114 (05/03)
Checked
2026-09-24

Sources

Cite this note

APA

WarmTransfer. (2026, September 24). Call quality metrics and MOS estimation: source note call-quality-metrics-g114-400ms-bound. WarmTransfer. https://warmtransfer.net/knowledge/claims/call-quality-metrics-g114-400ms-bound

BibTeX

@misc{warmtransfer-claim-call-quality-metrics-g114-400ms-bound,
  title  = {Call quality metrics and MOS estimation: source note call-quality-metrics-g114-400ms-bound},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/call-quality-metrics-g114-400ms-bound},
  note   = {Source note call-quality-metrics-g114-400ms-bound, checked 2026-09-24}
}

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