Source note · Troubleshooting Cisco IP phone registration
Setting the enterprise parameter Prepare Cluster for Rollback to pre-8.0 to True makes the cluster publish an ITL with blank entries, and phone services that use HTTPS do not work while it is enabled.
Checked 2026-09-24
Phone services that use https will not work while this parameter is enabled.
- Vendor
- Cisco
- Product
- Unified Communications Manager
- Subsystem
- ITL
- Deployment
- on-premises
- Region
- not restricted
- Release range
- Release 15 and SUs
- Checked
- 2026-09-24
Sources
- Security Guide for Cisco Unified Communications Manager, Release 15 and SUs - Default Security — Cisco Systems · tier 2 current vendor documentation · Default Security > Roll Back Cluster to a Pre-8.0 Release
Cite this note
APA
WarmTransfer. (2026, September 24). Troubleshooting Cisco IP phone registration: source note cisco-phone-registration-troubleshooting-rollback-param. WarmTransfer. https://warmtransfer.net/knowledge/claims/cisco-phone-registration-troubleshooting-rollback-param
BibTeX
@misc{warmtransfer-claim-cisco-phone-registration-troubleshooting-rollback-param,
title = {Troubleshooting Cisco IP phone registration: source note cisco-phone-registration-troubleshooting-rollback-param},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cisco-phone-registration-troubleshooting-rollback-param},
note = {Source note cisco-phone-registration-troubleshooting-rollback-param, checked 2026-09-24}
}