Source note · Unified CM virtualization and sizing
In CSR 14 sizing, the Large Unified CM OVA supports at most 12,500 users per node, assuming one device per user. With two devices per user, that falls to 6,250 users (12,500 devices).
Checked 2026-09-25
the Large platform OVA supports a maximum of 12,500 users, assuming one device per user.
- Vendor
- Cisco
- Product
- Unified Communications Manager
- Subsystem
- VM sizing
- Deployment
- on-premises
- Region
- not restricted
- Release range
- CSR 14
- Checked
- 2026-09-25
Sources
- Cisco Collaboration Sizing Guide - Collaboration Sizing Guide for CSR 14 — Cisco Systems · tier 2 current vendor documentation · Endpoints section, text around Table 1-4
Cite this note
APA
WarmTransfer. (2026, September 25). Unified CM virtualization and sizing: source note cucm-virtualization-sizing-csr14-large-ova-endpoints. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-virtualization-sizing-csr14-large-ova-endpoints
BibTeX
@misc{warmtransfer-claim-cucm-virtualization-sizing-csr14-large-ova-endpoints,
title = {Unified CM virtualization and sizing: source note cucm-virtualization-sizing-csr14-large-ova-endpoints},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-virtualization-sizing-csr14-large-ova-endpoints},
note = {Source note cucm-virtualization-sizing-csr14-large-ova-endpoints, checked 2026-09-25}
}