Microsoft's Direct Routing architecture shows one certified SBC connecting Teams Phone both to an existing PSTN carrier and to an existing PBX, and Microsoft names integration with third-party PBXs as a reason to choose Direct Routing.
Checked 2026-09-24
- Vendor
- Microsoft
- Product
- Teams Phone Direct Routing
- Subsystem
- architecture
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-24
- Checked
- 2026-09-24
Sources
- Plan Direct Routing — Microsoft (Microsoft Learn) · tier 2 current vendor documentation · Why choose Direct Routing?; Direct Routing architecture
Cite this note
APA
WarmTransfer. (2026, September 24). Building a hybrid Unified CM and Teams Phone environment for a phased migration: source note cucm-teams-hybrid-build-plan-pbx-architecture. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-teams-hybrid-build-plan-pbx-architecture
BibTeX
@misc{warmtransfer-claim-cucm-teams-hybrid-build-plan-pbx-architecture,
title = {Building a hybrid Unified CM and Teams Phone environment for a phased migration: source note cucm-teams-hybrid-build-plan-pbx-architecture},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-teams-hybrid-build-plan-pbx-architecture},
note = {Source note cucm-teams-hybrid-build-plan-pbx-architecture, checked 2026-09-24}
}