Source note · Setting up an Oracle SBC for Teams Direct Routing

In the multi-tenant (carrier) model, the carrier registers a base domain in its own tenant and gets a wildcard certificate for *.base_domain, and each customer tenant gets a subdomain of it; that subdomain must match both the customer's trunk FQDN and the FQDN the SBC puts in the Contact header, because Direct Routing identifies the tenant from the Contact header.

Checked 2026-09-30

Vendor: Microsoft
Product: Microsoft Teams Phone Direct Routing
Subsystem: Multi-tenant hosting
Deployment: multi-tenant
Region: not restricted
Release range: current as of 2026-09-30
Checked: 2026-09-30

Sources

Configure a Session Border Controller for multiple tenants — Microsoft · tier 2 current vendor documentation · Register a base domain and subdomains - Overview

Cite this note

APA

WarmTransfer. (2026, September 30). Setting up an Oracle SBC for Teams Direct Routing: source note oracle-sbc-teams-direct-routing-setup-carrier-domains. WarmTransfer. https://warmtransfer.net/knowledge/claims/oracle-sbc-teams-direct-routing-setup-carrier-domains

BibTeX

@misc{warmtransfer-claim-oracle-sbc-teams-direct-routing-setup-carrier-domains,
  title  = {Setting up an Oracle SBC for Teams Direct Routing: source note oracle-sbc-teams-direct-routing-setup-carrier-domains},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/oracle-sbc-teams-direct-routing-setup-carrier-domains},
  note   = {Source note oracle-sbc-teams-direct-routing-setup-carrier-domains, checked 2026-09-30}
}

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