Cisco describes two PSTN strategies for the transition: move to a Cloud Connected PSTN provider at the start, or keep on-premises PSTN throughout and migrate PSTN location by location.
Checked 2026-09-24
- Vendor
- Cisco
- Product
- Webex Calling
- Subsystem
- PSTN
- Deployment
- multi-tenant, on-premises
- 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 · PSTN section, PSTN strategy
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-pstn-strategy-options. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-webex-calling-hybrid-build-pstn-strategy-options
BibTeX
@misc{warmtransfer-claim-cucm-webex-calling-hybrid-build-pstn-strategy-options,
title = {Building a hybrid Unified CM and Webex Calling environment for a phased migration: source note cucm-webex-calling-hybrid-build-pstn-strategy-options},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-webex-calling-hybrid-build-pstn-strategy-options},
note = {Source note cucm-webex-calling-hybrid-build-pstn-strategy-options, checked 2026-09-24}
}