The Teams Survivable Branch Appliance keeps PSTN calling working at a Direct Routing branch that has lost connectivity to the Microsoft cloud but can still reach its SBC over the local network.

Checked 2026-09-25

Vendor
Microsoft
Product
Teams Phone with Direct Routing
Subsystem
Survivable Branch Appliance
Deployment
multi-tenant
Region
not restricted
Release range
current as of 2026-09-25
Checked
2026-09-25

Sources

Cite this note

APA

WarmTransfer. (2026, September 25). UC disaster recovery and business continuity: source note uc-disaster-recovery-teams-sba-purpose. WarmTransfer. https://warmtransfer.net/knowledge/claims/uc-disaster-recovery-teams-sba-purpose

BibTeX

@misc{warmtransfer-claim-uc-disaster-recovery-teams-sba-purpose,
  title  = {UC disaster recovery and business continuity: source note uc-disaster-recovery-teams-sba-purpose},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/uc-disaster-recovery-teams-sba-purpose},
  note   = {Source note uc-disaster-recovery-teams-sba-purpose, checked 2026-09-25}
}

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