Source note · Enabling mixed mode and encrypted calling in Unified CM
The utils ctl commands are not allowed while an upgrade is in progress.
Checked 2026-09-30
- Vendor
- Cisco
- Product
- Cisco Unified Communications Manager
- Subsystem
- CLI
- Deployment
- on-premises
- Region
- not restricted
- Release range
- 15 and SUs
- Checked
- 2026-09-30
Sources
- Command Line Interface Reference Guide for Cisco Unified Communications Solutions, Release 15 and SUs - Utils Commands — Cisco Systems · tier 2 current vendor documentation · utils ctl > Requirements
Cite this note
APA
WarmTransfer. (2026, September 30). Enabling mixed mode and encrypted calling in Unified CM: source note cucm-secure-calling-setup-utils-ctl-not-during-upgrade. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-secure-calling-setup-utils-ctl-not-during-upgrade
BibTeX
@misc{warmtransfer-claim-cucm-secure-calling-setup-utils-ctl-not-during-upgrade,
title = {Enabling mixed mode and encrypted calling in Unified CM: source note cucm-secure-calling-setup-utils-ctl-not-during-upgrade},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-secure-calling-setup-utils-ctl-not-during-upgrade},
note = {Source note cucm-secure-calling-setup-utils-ctl-not-during-upgrade, checked 2026-09-30}
}