Source note · Microsoft teams phone
For Microsoft 365, Office 365 and GCC, the SBC connects to sip.pstnhub.microsoft.com, sip2.pstnhub.microsoft.com and sip3.pstnhub.microsoft.com in priority order over SIP/TLS to port 5061; GCC High uses sip.pstnhub.gov.teams.microsoft.us and DoD uses sip.pstnhub.dod.teams.microsoft.us.
Checked 2026-09-24
- Vendor
- Microsoft
- Product
- Teams Phone
- Subsystem
- Direct Routing - signaling
- Deployment
- multi-tenant, gcc, gcc-high, dod
- 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 · Plan Direct Routing, sections 'SIP signaling: FQDNs', 'SIP signaling: GCC High', 'SIP signaling: DoD', 'SIP signaling ports'
Cite this note
APA
WarmTransfer. (2026, September 24). Microsoft teams phone: source note microsoft-teams-phone-dr-sip-endpoints. WarmTransfer. https://warmtransfer.net/knowledge/claims/microsoft-teams-phone-dr-sip-endpoints
BibTeX
@misc{warmtransfer-claim-microsoft-teams-phone-dr-sip-endpoints,
title = {Microsoft teams phone: source note microsoft-teams-phone-dr-sip-endpoints},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/microsoft-teams-phone-dr-sip-endpoints},
note = {Source note microsoft-teams-phone-dr-sip-endpoints, checked 2026-09-24}
}