Plan Direct Routing

Publisher

Microsoft (Microsoft Learn)

URL

https://learn.microsoft.com/en-us/microsoftteams/direct-routing-plan

Published

2026-08-21

Updated

unknown

Accessed

2026-09-06

HTTP status

200

License

Microsoft Learn documentation under Microsoft site terms; short excerpts and locators only

Claims citing this source

• Direct Routing connects customer telephony infrastructure to Teams Phone through a supported customer-provided Session Border Controller. fact in context
• Microsoft's Direct Routing plan puts infrastructure and licensing before SBC selection and connectivity then routing and user assignment and requires inbound outbound emergency failover policy and call-quality validation before production rollout. fact in context
• The current Direct Routing plan requires a Microsoft-certified SBC telephony trunks a Microsoft 365 tenant with online users a verified domain a public IP address and DNS record for the SBC FQDN a public certificate and permitted signaling and media paths. fact in context
• Microsoft states that Direct Routing is not supported in Islands mode. fact in context
• A Direct Routing SBC FQDN must belong to a verified Microsoft 365 tenant domain and cannot use the default onmicrosoft.com domain. fact in context
• Microsoft documents Direct Routing alongside other Teams Phone PSTN models and names third-party PBXs analog devices and specialized routing as uses for the Direct Routing leg. fact in context

Cite this source record

APA

WarmTransfer. (2026, August 21). Plan Direct Routing. WarmTransfer. https://warmtransfer.net/knowledge/sources/ms-learn-plan-direct-routing

BibTeX

@misc{warmtransfer-ms-learn-plan-direct-routing,
  title  = {Plan Direct Routing},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/ms-learn-plan-direct-routing},
  note   = {Microsoft (Microsoft Learn), accessed 2026-09-06}
}