Source note · Session border controller selection and certification
Direct Routing certification is granted to specific SBC firmware versions, and higher firmware versions are supported as long as the major.minor version is the same as the documented one.
Checked 2026-10-14
Firmware versions that are higher than what is documented are supported as long as the major.minor version is the same.
- Vendor
- Microsoft
- Product
- Teams Phone
- Subsystem
- SBC certification
- Deployment
- direct-routing
- Region
- not restricted
- Release range
- current as of 2026-10-14
- Checked
- 2026-10-14
Sources
- Session Border Controllers certified for Direct Routing - Microsoft Teams — Microsoft · tier 2 current vendor documentation · Introductory Note, final paragraph and example block (6.10.258 example)
Cite this note
APA
WarmTransfer. (2026, October 14). Session border controller selection and certification: source note sbc-selection-msdr-cert-major-minor-rule. WarmTransfer. https://warmtransfer.net/knowledge/claims/sbc-selection-msdr-cert-major-minor-rule
BibTeX
@misc{warmtransfer-claim-sbc-selection-msdr-cert-major-minor-rule,
title = {Session border controller selection and certification: source note sbc-selection-msdr-cert-major-minor-rule},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sbc-selection-msdr-cert-major-minor-rule},
note = {Source note sbc-selection-msdr-cert-major-minor-rule, checked 2026-10-14}
}