From 12.5 the ITLRecovery certificate is regenerated only on the publisher, and in a mixed-mode cluster the CTL file must be updated before services are restarted.

Checked 2026-09-30

Vendor
Cisco
Product
Cisco Unified Communications Manager
Subsystem
certificates
Deployment
on-premises
Region
not restricted
Release range
12.5 and later
Checked
2026-09-30

Sources

Cite this note

APA

WarmTransfer. (2026, September 30). Enabling mixed mode and encrypted calling in Unified CM: source note cucm-secure-calling-setup-regen-itlrecovery. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-secure-calling-setup-regen-itlrecovery

BibTeX

@misc{warmtransfer-claim-cucm-secure-calling-setup-regen-itlrecovery,
  title  = {Enabling mixed mode and encrypted calling in Unified CM: source note cucm-secure-calling-setup-regen-itlrecovery},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cucm-secure-calling-setup-regen-itlrecovery},
  note   = {Source note cucm-secure-calling-setup-regen-itlrecovery, checked 2026-09-30}
}

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