P.863 edition 3 (03/18) extended scope to fullband codecs such as Opus and EVS and removed the initial 14 kHz low-pass filter.

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-ed3-fullband. WarmTransfer. https://warmtransfer.net/knowledge/claims/call-quality-metrics-p863-ed3-fullband

BibTeX

@misc{warmtransfer-claim-call-quality-metrics-p863-ed3-fullband,
  title  = {Call quality metrics and MOS estimation: source note call-quality-metrics-p863-ed3-fullband},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/call-quality-metrics-p863-ed3-fullband},
  note   = {Source note call-quality-metrics-p863-ed3-fullband, checked 2026-09-24}
}

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