Source note · Unified CM virtualization and sizing

For Versions 14 and 15, the Unified CM virtualization page presents Small, Medium and Large as recommended starting points without user or device counts, and points to the Collaboration Sizing Tool (CST) for prescriptive VM specifications.

Checked 2026-09-25

Vendor: Cisco
Product: Unified Communications Manager
Subsystem: VM sizing
Deployment: on-premises
Region: not restricted
Release range: 14, 15
Checked: 2026-09-25

Sources

Virtualization for Cisco Unified Communications Manager (CUCM) — Cisco Systems · tier 2 current vendor documentation · Version 15 and Version 14 sections, text above the recommended starting points tables

Cite this note

APA

WarmTransfer. (2026, September 25). Unified CM virtualization and sizing: source note cucm-virtualization-sizing-v14-v15-sizes-no-user-counts. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-virtualization-sizing-v14-v15-sizes-no-user-counts

BibTeX

@misc{warmtransfer-claim-cucm-virtualization-sizing-v14-v15-sizes-no-user-counts,
  title  = {Unified CM virtualization and sizing: source note cucm-virtualization-sizing-v14-v15-sizes-no-user-counts},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cucm-virtualization-sizing-v14-v15-sizes-no-user-counts},
  note   = {Source note cucm-virtualization-sizing-v14-v15-sizes-no-user-counts, checked 2026-09-25}
}

Read in context