Source note · DNS SRV and service discovery for SIP
For Teams Direct Routing, the SBC FQDN must belong to a domain verified in the Microsoft 365 tenant, and the default *.onmicrosoft.com domain cannot be used.
Checked 2026-09-24
You can't use the default *.onmicrosoft.com domain.
- Vendor
- Microsoft
- Product
- Teams Phone Direct Routing
- Subsystem
- SBC addressing
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-24
- Checked
- 2026-09-24
Sources
- Plan Direct Routing — Microsoft (Microsoft Learn) · tier 2 current vendor documentation · SBC domain names
Cite this note
APA
WarmTransfer. (2026, September 24). DNS SRV and service discovery for SIP: source note dns-srv-voice-msdr-sbc-fqdn-domain. WarmTransfer. https://warmtransfer.net/knowledge/claims/dns-srv-voice-msdr-sbc-fqdn-domain
BibTeX
@misc{warmtransfer-claim-dns-srv-voice-msdr-sbc-fqdn-domain,
title = {DNS SRV and service discovery for SIP: source note dns-srv-voice-msdr-sbc-fqdn-domain},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/dns-srv-voice-msdr-sbc-fqdn-domain},
note = {Source note dns-srv-voice-msdr-sbc-fqdn-domain, checked 2026-09-24}
}