Cisco advises against regenerating the ITLRecovery certificate frequently, because phones trust it for a long period.
Checked 2026-10-01
- Vendor
- Cisco
- Product
- Unified Communications Manager
- Subsystem
- ITLRecovery
- Deployment
- on-premises
- Region
- not restricted
- Release range
- 15 and SUs
- Checked
- 2026-10-01
Sources
- Security Guide for Cisco Unified Communications Manager, Release 15 and SUs - Certificates — Cisco Systems · tier 2 current vendor documentation · Certificates > ITLRecovery certificate note
Cite this note
APA
WarmTransfer. (2026, October 1). Troubleshooting phone trust and ITL failures in Unified CM: source note cucm-itl-trust-troubleshooting-itlrecovery-avoid-regen. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-itl-trust-troubleshooting-itlrecovery-avoid-regen
BibTeX
@misc{warmtransfer-claim-cucm-itl-trust-troubleshooting-itlrecovery-avoid-regen,
title = {Troubleshooting phone trust and ITL failures in Unified CM: source note cucm-itl-trust-troubleshooting-itlrecovery-avoid-regen},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-itl-trust-troubleshooting-itlrecovery-avoid-regen},
note = {Source note cucm-itl-trust-troubleshooting-itlrecovery-avoid-regen, checked 2026-10-01}
}