With Webex Calling route lists, an inbound PSTN call goes to a trunk in the route list's route group when the called number is in the route list, and an outbound call from the on-premises PBX uses the location's PSTN when its calling number is in the route list.
Checked 2026-09-24
- Vendor
- Cisco
- Product
- Webex Calling
- Subsystem
- PSTN trunking for hybrid deployments
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-24
- Checked
- 2026-09-24
Sources
- PSTN trunking for hybrid Webex Calling deployments — Cisco Systems, Inc. (Webex Help Center) · tier 2 current vendor documentation · How it works: call flows
Cite this note
APA
WarmTransfer. (2026, September 24). Building a hybrid Unified CM and Webex Calling environment for a phased migration: source note cucm-webex-calling-hybrid-build-route-list-flows. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-webex-calling-hybrid-build-route-list-flows
BibTeX
@misc{warmtransfer-claim-cucm-webex-calling-hybrid-build-route-list-flows,
title = {Building a hybrid Unified CM and Webex Calling environment for a phased migration: source note cucm-webex-calling-hybrid-build-route-list-flows},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-webex-calling-hybrid-build-route-list-flows},
note = {Source note cucm-webex-calling-hybrid-build-route-list-flows, checked 2026-09-24}
}