Source note · Teams Phone Direct Routing and SBC certification
Microsoft SIP endpoints currently trust Direct Routing SBC certificates that lack the Client Authentication EKU. Microsoft expects this to continue for the foreseeable future and says it will announce any change in advance.
Checked 2026-09-23
- Vendor
- Microsoft
- Product
- Teams Phone Direct Routing
- Subsystem
- tls-certificates
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-23
- Checked
- 2026-09-23
Sources
- What's New Direct Routing — Microsoft · tier 2 current vendor documentation · entry 'Clarification on Client Authentication Extended Key Usage (EKU)'
Cite this note
APA
WarmTransfer. (2026, September 23). Teams Phone Direct Routing and SBC certification: source note teams-direct-routing-client-eku-not-required. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-direct-routing-client-eku-not-required
BibTeX
@misc{warmtransfer-claim-teams-direct-routing-client-eku-not-required,
title = {Teams Phone Direct Routing and SBC certification: source note teams-direct-routing-client-eku-not-required},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/teams-direct-routing-client-eku-not-required},
note = {Source note teams-direct-routing-client-eku-not-required, checked 2026-09-23}
}