Source note · CUCM to Webex Calling migration
Cisco explicitly allows for organisations remaining indefinitely in the Phase 1 dual call control coexistence state with no plan to complete the transition to cloud calling.
Checked 2026-09-04
It is possible that some organizations may maintain a coexistence dual call control deployment indefinitely with no plans to ever fully transition to cloud calling
- Vendor
- Cisco
- Product
- Webex Calling
- Subsystem
- Unified CM to Webex Calling migration
- Deployment
- not restricted
- Region
- not restricted
- Release range
- current as of 2026-09-04
- Checked
- 2026-09-04
Sources
- Transitioning from Unified CM to Webex Calling — Deployment Guide — Cisco Systems, Inc. (CTG TME) · tier 2 current vendor documentation · Note under Figure 7
Cite this note
APA
WarmTransfer. (2026, September 4). CUCM to Webex Calling migration: source note wxc-mig-indefinite-coexistence-supported. WarmTransfer. https://warmtransfer.net/knowledge/claims/wxc-mig-indefinite-coexistence-supported
BibTeX
@misc{warmtransfer-claim-wxc-mig-indefinite-coexistence-supported,
title = {CUCM to Webex Calling migration: source note wxc-mig-indefinite-coexistence-supported},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/wxc-mig-indefinite-coexistence-supported},
note = {Source note wxc-mig-indefinite-coexistence-supported, checked 2026-09-04}
}