Introduction (Migrate Unified CM to Webex Calling)

Publisher

Cisco Systems, Inc. (Webex Help Center)

URL

https://help.webex.com/en-us/article/nbedetf/Introduction

Published

unknown

Updated

unknown

Accessed

2026-09-16

HTTP status

200

License

Cisco proprietary documentation, all rights reserved; no-redistribution; short excerpts and locators only

Source notes citing this source

• Cisco states some organizations may keep a coexistence dual call control deployment indefinitely with no plan to fully move to cloud calling. in context
• Cisco describes the coexistence phase of a Unified CM to Webex Calling migration as one in which some users, devices and soft clients have moved to Webex Calling while others remain on on-premises Unified CM call control. in context
• Cisco states an organization may remain in the coexistence dual call control phase for an extended period of months or even years. in context
• Cisco names two migration approaches, flash-cut (all users and devices moved at the same time) and phased, and says most organizations use the phased approach. in context
• Cisco's UCM-to-Webex-Calling introduction lists Cisco Jabber as a software endpoint of the on-premises (before) architecture, not the cloud (after) architecture. in context
• In the Webex Calling target architecture, the Webex App on Windows, Mac, Android or iOS registers directly to the Webex Calling platform for calling. in context

Cite this source record

APA

WarmTransfer. (2026, September 16). Introduction (Migrate Unified CM to Webex Calling). WarmTransfer. https://warmtransfer.net/knowledge/sources/cisco-help-nbedetf-ucm-wxc-migration-intro

BibTeX

@misc{warmtransfer-cisco-help-nbedetf-ucm-wxc-migration-intro,
  title  = {Introduction (Migrate Unified CM to Webex Calling)},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/cisco-help-nbedetf-ucm-wxc-migration-intro},
  note   = {Cisco Systems, Inc. (Webex Help Center), accessed 2026-09-16}
}