Before moving a cluster from non-secure mode to mixed mode, the Certificate Authority Proxy Function (CAPF) service and the Certificate Trust List (CTL) service must be enabled on the publisher.

Checked 2026-09-25

Vendor
Cisco
Product
Unified Communications Manager
Subsystem
security modes
Deployment
on-premises
Region
not restricted
Release range
Release 15 and SUs
Checked
2026-09-25

Sources

Cite this note

APA

WarmTransfer. (2026, September 25). Unified CM security hardening: source note cucm-security-hardening-mixed-mode-capf-ctl. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-security-hardening-mixed-mode-capf-ctl

BibTeX

@misc{warmtransfer-claim-cucm-security-hardening-mixed-mode-capf-ctl,
  title  = {Unified CM security hardening: source note cucm-security-hardening-mixed-mode-capf-ctl},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cucm-security-hardening-mixed-mode-capf-ctl},
  note   = {Source note cucm-security-hardening-mixed-mode-capf-ctl, checked 2026-09-25}
}

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