The Collaboration 14 Preferred Architecture recommends deploying SME with four or more Unified CM clusters, to centralize dial plan and trunking and avoid a full-mesh SIP trunk topology.

Checked 2026-09-25

With four or more clusters, deploy Cisco Unified CM Session Management Edition (SME) to centralize the dial plan and trunking and to avoid the complexity of a full-mesh SIP trunk topology.
Vendor
Cisco
Product
Unified Communications Manager Session Management Edition
Subsystem
design
Deployment
on-premises
Region
not restricted
Release range
Collaboration Systems Release 14
Checked
2026-09-25

Sources

Cite this note

APA

WarmTransfer. (2026, September 25). Unified CM Session Management Edition: source note cucm-session-management-edition-four-cluster-threshold. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-session-management-edition-four-cluster-threshold

BibTeX

@misc{warmtransfer-claim-cucm-session-management-edition-four-cluster-threshold,
  title  = {Unified CM Session Management Edition: source note cucm-session-management-edition-four-cluster-threshold},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cucm-session-management-edition-four-cluster-threshold},
  note   = {Source note cucm-session-management-edition-four-cluster-threshold, checked 2026-09-25}
}

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