Survivable Branch Appliance for Direct Routing

Publisher

Microsoft (Microsoft Learn)

URL

https://learn.microsoft.com/en-us/microsoftteams/direct-routing-survivable-branch-appliance

Published

2026-04-27

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

• Microsoft states that a tenant using Continuous Access Evaluation tokens may have only about 30 minutes of SBA operation. fact in context
• In SBA mode web and virtual-machine clients are unsupported emergency location information is not shared and Teams Emergency Call Routing Policies are unsupported. fact in context
• The Direct Routing SBA requires Media Bypass TLS 1.2 and firewall access for its documented client SBC NTP and Microsoft 365 communication ports. fact in context
• A Direct Routing Survivable Branch Appliance supports local PSTN calling during a Microsoft-cloud connectivity outage when the branch intranet and SBC remain reachable. fact in context

Cite this source record

APA

WarmTransfer. (2026, April 27). Survivable Branch Appliance for Direct Routing. WarmTransfer. https://warmtransfer.net/knowledge/sources/ms-learn-direct-routing-sba

BibTeX

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