The design guide describes an optional failover configuration with two port groups, each holding half the ports (answering and dial-out), with the Unified CM servers listed in opposite order in each.

Checked 2026-09-25

The first port group contains half the voice messaging ports for the Cisco Unified CM integration (including answering and dialout ports)
Vendor
Cisco
Product
Cisco Unity Connection
Subsystem
failover
Deployment
on-premises
Region
not restricted
Release range
Unity Connection 15
Checked
2026-09-25

Sources

Cite this note

APA

WarmTransfer. (2026, September 25). Integrating Unity Connection with Unified CM: source note unity-connection-cucm-integration-setup-failover-portgroups. WarmTransfer. https://warmtransfer.net/knowledge/claims/unity-connection-cucm-integration-setup-failover-portgroups

BibTeX

@misc{warmtransfer-claim-unity-connection-cucm-integration-setup-failover-portgroups,
  title  = {Integrating Unity Connection with Unified CM: source note unity-connection-cucm-integration-setup-failover-portgroups},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/unity-connection-cucm-integration-setup-failover-portgroups},
  note   = {Source note unity-connection-cucm-integration-setup-failover-portgroups, checked 2026-09-25}
}

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