Source note · UC disaster recovery and business continuity
In SBA mode, emergency calls can be placed but location is not shared, and the SBA ignores Emergency Call Routing Policies and sends emergency dial strings without a plus sign, so emergency calls fail unless the regular voice routing policy has a matching pattern.
Checked 2026-09-25
SBA does not support Emergency Call Routing Policies.
- Vendor
- Microsoft
- Product
- Teams Phone with Direct Routing
- Subsystem
- Survivable Branch Appliance emergency calling
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-25
- Checked
- 2026-09-25
Sources
- Survivable Branch Appliance for Direct Routing — Microsoft (Microsoft Learn) · tier 2 current vendor documentation · Known issues and considerations, 'In SBA mode, the following user actions aren't supported'
Cite this note
APA
WarmTransfer. (2026, September 25). UC disaster recovery and business continuity: source note uc-disaster-recovery-teams-sba-e911. WarmTransfer. https://warmtransfer.net/knowledge/claims/uc-disaster-recovery-teams-sba-e911
BibTeX
@misc{warmtransfer-claim-uc-disaster-recovery-teams-sba-e911,
title = {UC disaster recovery and business continuity: source note uc-disaster-recovery-teams-sba-e911},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/uc-disaster-recovery-teams-sba-e911},
note = {Source note uc-disaster-recovery-teams-sba-e911, checked 2026-09-25}
}