With more than four clusters, the Preferred Architecture suggests Session Management Edition to centralise the dial plan and trunking instead of a full mesh of SIP trunks.

Checked 2026-09-25

Vendor
Cisco
Product
Unified Communications Manager Session Management Edition
Subsystem
Multi-cluster design
Deployment
on-premises
Region
not restricted
Release range
Collaboration 14 Preferred Architecture
Checked
2026-09-25

Sources

Cite this note

APA

WarmTransfer. (2026, September 25). Unified CM intercluster trunks: source note cucm-intercluster-trunks-pa-sme-over-four. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-intercluster-trunks-pa-sme-over-four

BibTeX

@misc{warmtransfer-claim-cucm-intercluster-trunks-pa-sme-over-four,
  title  = {Unified CM intercluster trunks: source note cucm-intercluster-trunks-pa-sme-over-four},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cucm-intercluster-trunks-pa-sme-over-four},
  note   = {Source note cucm-intercluster-trunks-pa-sme-over-four, checked 2026-09-25}
}

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