P.863 is an objective method that predicts overall listening speech quality for narrowband through fullband scenarios, targeting the results of P.800 or P.830 ACR listening tests.

Checked 2026-09-24

Vendor
ITU-T
Product
P.863
Subsystem
objective speech quality
Deployment
any
Region
not restricted
Release range
P.863 (03/18)
Checked
2026-09-24

Sources

Cite this note

APA

WarmTransfer. (2026, September 24). Call quality metrics and MOS estimation: source note call-quality-metrics-p863-scope. WarmTransfer. https://warmtransfer.net/knowledge/claims/call-quality-metrics-p863-scope

BibTeX

@misc{warmtransfer-claim-call-quality-metrics-p863-scope,
  title  = {Call quality metrics and MOS estimation: source note call-quality-metrics-p863-scope},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/call-quality-metrics-p863-scope},
  note   = {Source note call-quality-metrics-p863-scope, checked 2026-09-24}
}

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