In the carrier model, the carrier creates a single carrier trunk in its own tenant with New-CsOnlinePSTNGateway, and customer tenants add a derived-trunk FQDN to their voice routes without creating a gateway. Derived trunks inherit the carrier trunk's settings and health status.

Checked 2026-09-23

Vendor
Microsoft
Product
Teams Phone Direct Routing
Subsystem
carrier-hosting
Deployment
multi-tenant
Region
not restricted
Release range
current as of 2026-09-23
Checked
2026-09-23

Sources

Cite this note

APA

WarmTransfer. (2026, September 23). Teams Phone Direct Routing and SBC certification: source note teams-direct-routing-derived-trunk. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-direct-routing-derived-trunk

BibTeX

@misc{warmtransfer-claim-teams-direct-routing-derived-trunk,
  title  = {Teams Phone Direct Routing and SBC certification: source note teams-direct-routing-derived-trunk},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/teams-direct-routing-derived-trunk},
  note   = {Source note teams-direct-routing-derived-trunk, checked 2026-09-23}
}

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