Source note · CUCM to Teams Phone migration
Under Direct Routing the organisation can use any PSTN operator, with the integration achieved through a certified SBC procured, installed and managed by the customer, its integrator, or a Direct-Routing-as-a-Service provider.
Checked 2026-09-16
you can use any PSTN operator. Integration of your preferred PSTN operator's access to your tenant is achieved through a certified Session Border Controller (SBC) that is procured, installed, and managed by you, your integrator, or a Direct-Routing-as-a-Service (DRaaS) provider.
- Vendor
- Microsoft
- Product
- Teams Phone
- Subsystem
- PSTN connectivity
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-16
- Checked
- 2026-09-16
Sources
- PSTN connectivity options — Microsoft (Microsoft Learn) · tier 2 current vendor documentation · PSTN connectivity options > Direct Routing bullet and its sub-bullet
Cite this note
APA
WarmTransfer. (2026, September 16). CUCM to Teams Phone migration: source note cucm-to-teams-phone-dr-carrier-flexibility. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-to-teams-phone-dr-carrier-flexibility
BibTeX
@misc{warmtransfer-claim-cucm-to-teams-phone-dr-carrier-flexibility,
title = {CUCM to Teams Phone migration: source note cucm-to-teams-phone-dr-carrier-flexibility},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-to-teams-phone-dr-carrier-flexibility},
note = {Source note cucm-to-teams-phone-dr-carrier-flexibility, checked 2026-09-16}
}