Source note · Cisco IP phone registration and TFTP and ITL and CTL
For moving phones between clusters, the Release 15 Security Guide calls the Prepare Cluster for Rollback to pre-8.0 parameter the most preferred option.
Checked 2026-09-24
The most preferred option is to make use of the Cisco Unified CM Enterprise Parameter Prepare Cluster for Rollback to pre-8.0.
- Vendor
- Cisco
- Product
- Cisco Unified Communications Manager
- Subsystem
- Cluster migration
- 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 chapter, Migrate IP Phones Between Clusters section
Cite this note
APA
WarmTransfer. (2026, September 24). Cisco IP phone registration and TFTP and ITL and CTL: source note cisco-phone-registration-rollback-preferred-migration. WarmTransfer. https://warmtransfer.net/knowledge/claims/cisco-phone-registration-rollback-preferred-migration
BibTeX
@misc{warmtransfer-claim-cisco-phone-registration-rollback-preferred-migration,
title = {Cisco IP phone registration and TFTP and ITL and CTL: source note cisco-phone-registration-rollback-preferred-migration},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cisco-phone-registration-rollback-preferred-migration},
note = {Source note cisco-phone-registration-rollback-preferred-migration, checked 2026-09-24}
}