Source note · CUCM to Webex Calling migration
Because a single data migration task caps at 1000 users and 1000 devices, a flash-cut of an estate larger than that is not one task but several tasks run inside one cutover window, which sets a practical floor on how long the window can be.
inferred · Checked 2026-09-16
- Vendor
- Cisco
- Product
- not restricted
- Subsystem
- Unified CM to Webex Calling migration
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-16
- Status
- inferred
- Checked
- 2026-09-16
Sources
- Migrate Unified CM data to Webex Calling — Cisco Systems, Inc. (Webex Help Center) · tier 2 current vendor documentation · Section: Limits, maximum per task, read against the flash-cut approach
Cite this note
APA
WarmTransfer. (2026, September 16). CUCM to Webex Calling migration: source note ucm-wxc-flashcut-still-multiple-tasks. WarmTransfer. https://warmtransfer.net/knowledge/claims/ucm-wxc-flashcut-still-multiple-tasks
BibTeX
@misc{warmtransfer-claim-ucm-wxc-flashcut-still-multiple-tasks,
title = {CUCM to Webex Calling migration: source note ucm-wxc-flashcut-still-multiple-tasks},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/ucm-wxc-flashcut-still-multiple-tasks},
note = {Source note ucm-wxc-flashcut-still-multiple-tasks, checked 2026-09-16}
}