Cisco's implementation checklist says to disable or delete the user and device directory number and calling features on Unified CM after the user has transitioned to Webex Calling.
Checked 2026-09-24
- Vendor
- Cisco
- Product
- Unified CM
- Subsystem
- user migration
- Deployment
- on-premises
- Region
- not restricted
- Release range
- current as of 2026-09-24
- Checked
- 2026-09-24
Sources
- Implement the migration from Unified CM to Webex Calling — Cisco Systems, Inc. (Webex Help Center) · tier 2 current vendor documentation · Implement the migration > user batch migration checklist
Cite this note
APA
WarmTransfer. (2026, September 24). Unified CM and Webex Calling coexistence during a migration: source note cucm-webex-calling-coexistence-remove-ucm-dn. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-webex-calling-coexistence-remove-ucm-dn
BibTeX
@misc{warmtransfer-claim-cucm-webex-calling-coexistence-remove-ucm-dn,
title = {Unified CM and Webex Calling coexistence during a migration: source note cucm-webex-calling-coexistence-remove-ucm-dn},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-webex-calling-coexistence-remove-ucm-dn},
note = {Source note cucm-webex-calling-coexistence-remove-ucm-dn, checked 2026-09-24}
}