Administration Guide for Cisco Unified Communications Manager, Release 15 and SUs - Manage Certificates

Publisher

Cisco Systems

URL

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/15/adminGd/cucm_b_administration-guide-15/cucm_b_test-adminguide_chapter_01111.html

Published

2026-08-31

Updated

unknown

Accessed

2026-09-25

HTTP status

200

License

Cisco website terms of use; copyrighted; no-redistribution; short excerpts and locators only

Source notes citing this source

• The Release 15 regeneration procedure ends with a system backup so the backup includes the regenerated certificates. in context
• Certificate expiry monitoring can be set with a notification start time and frequency, can send email notifications to a semicolon-separated list of addresses, and can optionally include LSCs. in context
• The Release 15 admin guide's restart table lists only the HAProxy service after CallManager or CallManager-ECDSA regeneration, plus a CTL file update if the cluster is secure. disputed in context
• The ITLRecovery certificate signs both the ITL and CTL files and is also used to sign SAML SSO assertions. Its service restarts automatically when it is regenerated. in context
• Multi-server SAN certificates cannot be uploaded through the CLI and must always be uploaded through the OS Admin GUI. in context
• According to the admin guide summary, the Release 15 regenerate dialog offers a 3072-bit or 4096-bit key length for self-signed certificates. in context
• Regenerating a certificate overwrites the existing certificate, including any third-party CA-signed certificate that was uploaded. in context
• The Release 15 admin guide says that after Tomcat or Tomcat-ECDSA is regenerated, Cisco Tomcat, Intercluster Lookup Service, Location Bandwidth Manager, DRS Local and Master, Extension Mobility and AXL Tomcat should be restarted. in context

Cite this source record

APA

WarmTransfer. (2026, August 31). Administration Guide for Cisco Unified Communications Manager, Release 15 and SUs - Manage Certificates. WarmTransfer. https://warmtransfer.net/knowledge/sources/cisco-cucm-admin-15-manage-certificates

BibTeX

@misc{warmtransfer-cisco-cucm-admin-15-manage-certificates,
  title  = {Administration Guide for Cisco Unified Communications Manager, Release 15 and SUs - Manage Certificates},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/cisco-cucm-admin-15-manage-certificates},
  note   = {Cisco Systems, accessed 2026-09-25}
}