Source note · Unified CM to Webex Calling Dedicated Instance
Before migration, CallManager.pem, ITLRecovery.pem and the intermediate and root CA certificates are exchanged in both directions between the on-premises cluster and Dedicated Instance, so phones can move between clusters and back without a factory reset.
Checked 2026-10-01
Phones can freely move to new cluster and back to old clusters without need of factory reset
- Vendor
- Cisco
- Product
- Webex Calling Dedicated Instance
- Subsystem
- certificates
- Deployment
- dedicated-instance
- Region
- not restricted
- Release range
- current as of 2026-10-01
- Checked
- 2026-10-01
Sources
- Best practices in preparation and migration process to Webex Calling - Dedicated Instance — Cisco Webex · tier 2 current vendor documentation · Certificates consolidation
Cite this note
APA
WarmTransfer. (2026, October 1). Unified CM to Webex Calling Dedicated Instance: source note cucm-to-webex-calling-dedicated-instance-bp-cert-exchange. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-to-webex-calling-dedicated-instance-bp-cert-exchange
BibTeX
@misc{warmtransfer-claim-cucm-to-webex-calling-dedicated-instance-bp-cert-exchange,
title = {Unified CM to Webex Calling Dedicated Instance: source note cucm-to-webex-calling-dedicated-instance-bp-cert-exchange},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-to-webex-calling-dedicated-instance-bp-cert-exchange},
note = {Source note cucm-to-webex-calling-dedicated-instance-bp-cert-exchange, checked 2026-10-01}
}