Source note · CUCM to Webex Calling migration
Cisco lists business reasons to keep call control on premises: phone models unsupported by Webex Calling, numerous or complex integrations without cloud equivalents, complex dial plans or granular classes of service, unreliable internet access, strict data privacy or ownership rules, on-premises or in-country call recording mandates, third-party integrations without a Webex Calling alternative, and contact-centre integrations not yet moving to cloud.
Checked 2026-09-04
- 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 · Figure 2 discussion
Cite this note
APA
WarmTransfer. (2026, September 4). CUCM to Webex Calling migration: source note wxc-mig-reasons-to-retain-onprem-call-control. WarmTransfer. https://warmtransfer.net/knowledge/claims/wxc-mig-reasons-to-retain-onprem-call-control
BibTeX
@misc{warmtransfer-claim-wxc-mig-reasons-to-retain-onprem-call-control,
title = {CUCM to Webex Calling migration: source note wxc-mig-reasons-to-retain-onprem-call-control},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/wxc-mig-reasons-to-retain-onprem-call-control},
note = {Source note wxc-mig-reasons-to-retain-onprem-call-control, checked 2026-09-04}
}