During coexistence, calls between on-premises Unified CM users and Webex Calling users traverse the Local Gateway connection.
Checked 2026-09-24
Calls between on-premises and Webex Calling user utilize the Local Gateway connection.
- Vendor
- Cisco
- Product
- Unified CM
- Subsystem
- interconnect
- Deployment
- on-premises, multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-24
- Checked
- 2026-09-24
Sources
- Design to migrate from Unified CM to Webex Calling — Cisco Systems, Inc. (Webex Help Center) · tier 2 current vendor documentation · Design to migrate from Unified CM to Webex Calling > PSTN
Cite this note
APA
WarmTransfer. (2026, September 24). Unified CM and Webex Calling coexistence during a migration: source note cucm-webex-calling-coexistence-lgw-interconnect. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-webex-calling-coexistence-lgw-interconnect
BibTeX
@misc{warmtransfer-claim-cucm-webex-calling-coexistence-lgw-interconnect,
title = {Unified CM and Webex Calling coexistence during a migration: source note cucm-webex-calling-coexistence-lgw-interconnect},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-webex-calling-coexistence-lgw-interconnect},
note = {Source note cucm-webex-calling-coexistence-lgw-interconnect, checked 2026-09-24}
}