Source note · Teams Phone Direct Routing and SBC certification
For Microsoft 365, Office 365 and GCC, the Direct Routing SIP connection points are sip.pstnhub.microsoft.com, sip2.pstnhub.microsoft.com and sip3.pstnhub.microsoft.com, configured in that priority order.
Checked 2026-09-23
- Vendor
- Microsoft
- Product
- Teams Phone Direct Routing
- Subsystem
- sip-signaling
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-23
- Checked
- 2026-09-23
Sources
- Plan Direct Routing — Microsoft (Microsoft Learn) · tier 2 current vendor documentation · section 'SIP signaling: FQDNs', first table
Cite this note
APA
WarmTransfer. (2026, September 23). Teams Phone Direct Routing and SBC certification: source note teams-direct-routing-signaling-fqdns. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-direct-routing-signaling-fqdns
BibTeX
@misc{warmtransfer-claim-teams-direct-routing-signaling-fqdns,
title = {Teams Phone Direct Routing and SBC certification: source note teams-direct-routing-signaling-fqdns},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/teams-direct-routing-signaling-fqdns},
note = {Source note teams-direct-routing-signaling-fqdns, checked 2026-09-23}
}