Source note · Call quality metrics and MOS estimation
CUCM documents K-factor scores as ranging from 1 (poor voice quality) to 5 (very good voice quality).
Checked 2026-09-24
measurements of average user annoyance range from 1 (poor voice quality) to 5 (very good voice quality)
- Vendor
- Cisco
- Product
- Cisco Unified Communications Manager
- Subsystem
- CMR varVQMetrics
- Deployment
- on-premises
- Region
- not restricted
- Release range
- Release 15 and SUs
- Checked
- 2026-09-24
Sources
- Call Reporting and Billing Administration Guide for Cisco Unified Communications Manager, Release 15 and SUs - CMR Field Descriptions — Cisco Systems · tier 2 current vendor documentation · CMR field table, varVQMetrics description
Cite this note
APA
WarmTransfer. (2026, September 24). Call quality metrics and MOS estimation: source note call-quality-metrics-cucm-kfactor-range. WarmTransfer. https://warmtransfer.net/knowledge/claims/call-quality-metrics-cucm-kfactor-range
BibTeX
@misc{warmtransfer-claim-call-quality-metrics-cucm-kfactor-range,
title = {Call quality metrics and MOS estimation: source note call-quality-metrics-cucm-kfactor-range},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/call-quality-metrics-cucm-kfactor-range},
note = {Source note call-quality-metrics-cucm-kfactor-range, checked 2026-09-24}
}