Bulk Certificate Export only works for phone migration if both the old and new clusters are online with network connectivity while the phones migrate.
Checked 2026-10-01
The Bulk Certificate Export method only works if both clusters are online with network connectivity while the phones are being migrated.
- Vendor
- Cisco
- Product
- Unified Communications Manager
- Subsystem
- Bulk Certificate Management
- 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 > Bulk certificate export section
Cite this note
APA
WarmTransfer. (2026, October 1). Troubleshooting phone trust and ITL failures in Unified CM: source note cucm-itl-trust-troubleshooting-bulk-cert-both-clusters-online. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-itl-trust-troubleshooting-bulk-cert-both-clusters-online
BibTeX
@misc{warmtransfer-claim-cucm-itl-trust-troubleshooting-bulk-cert-both-clusters-online,
title = {Troubleshooting phone trust and ITL failures in Unified CM: source note cucm-itl-trust-troubleshooting-bulk-cert-both-clusters-online},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-itl-trust-troubleshooting-bulk-cert-both-clusters-online},
note = {Source note cucm-itl-trust-troubleshooting-bulk-cert-both-clusters-online, checked 2026-10-01}
}