Source note · Teams Phone Direct Routing and SBC certification
In SBA mode, emergency calls don't share location information and Emergency Call Routing Policies aren't supported. Emergency calls fail unless the regular voice routing policy has a pattern matching the emergency dial strings, which are sent without a plus sign.
Checked 2026-09-23
- Vendor
- Microsoft
- Product
- Teams Phone Direct Routing
- Subsystem
- survivability
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-23
- Checked
- 2026-09-23
Sources
- Survivable Branch Appliance for Direct Routing — Microsoft (Microsoft Learn) · tier 2 current vendor documentation · section 'Known issues and considerations', 'In SBA mode, the following user actions aren't supported'
Cite this note
APA
WarmTransfer. (2026, September 23). Teams Phone Direct Routing and SBC certification: source note teams-direct-routing-sba-emergency-limits. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-direct-routing-sba-emergency-limits
BibTeX
@misc{warmtransfer-claim-teams-direct-routing-sba-emergency-limits,
title = {Teams Phone Direct Routing and SBC certification: source note teams-direct-routing-sba-emergency-limits},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/teams-direct-routing-sba-emergency-limits},
note = {Source note teams-direct-routing-sba-emergency-limits, checked 2026-09-23}
}