Source note · Call quality metrics and MOS estimation

For hold and resume on SCCP devices, CUCM generates multiple CMRs, one set per hold, so a call can carry more CMRs than one per endpoint.

Checked 2026-09-24

For Hold and Resume calls on SCCP devices, multiple CMR Records are generated based on the number of times the call is put on hold.

Vendor: Cisco
Product: Cisco Unified Communications Manager
Subsystem: Call Management Records
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 - Call Management Records — Cisco Systems · tier 2 current vendor documentation · CMR Processing

Cite this note

APA

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

BibTeX

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

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