Source note · Microsoft Teams Phone architecture and licensing
A Direct Routing SBC FQDN must belong to a verified Microsoft 365 tenant domain and cannot use the default onmicrosoft.com domain.
Checked 2026-09-06
- Vendor
- Microsoft
- Product
- Teams Phone
- Subsystem
- Direct Routing
- Deployment
- customer-managed-sbc
- Region
- not restricted
- Release range
- current as of 2026-09-06
- Checked
- 2026-09-06
Sources
- Plan Direct Routing — Microsoft (Microsoft Learn) · tier 2 current vendor documentation · SBC domain names
Cite this note
APA
WarmTransfer. (2026, September 6). Microsoft Teams Phone architecture and licensing: source note teamsphone-direct-routing-rejects-onmicrosoft-sbc-domain. WarmTransfer. https://warmtransfer.net/knowledge/claims/teamsphone-direct-routing-rejects-onmicrosoft-sbc-domain
BibTeX
@misc{warmtransfer-claim-teamsphone-direct-routing-rejects-onmicrosoft-sbc-domain,
title = {Microsoft Teams Phone architecture and licensing: source note teamsphone-direct-routing-rejects-onmicrosoft-sbc-domain},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/teamsphone-direct-routing-rejects-onmicrosoft-sbc-domain},
note = {Source note teamsphone-direct-routing-rejects-onmicrosoft-sbc-domain, checked 2026-09-06}
}