Source note · SIP trunk redundancy and failover design
GCC High uses sip.pstnhub.gov.teams.microsoft.us and DoD uses sip.pstnhub.dod.teams.microsoft.us, and Microsoft states that secondary and tertiary FQDNs are not required in these environments.
Checked 2026-09-25
- Vendor
- Microsoft
- Product
- Teams Phone Direct Routing
- Subsystem
- SIP signaling
- Deployment
- multi-tenant
- Region
- us-government
- Release range
- current as of 2026-09-25
- Checked
- 2026-09-25
Sources
- Plan Direct Routing — Microsoft (Microsoft Learn) · tier 2 current vendor documentation · SIP signaling: GCC High; SIP signaling: DoD
Cite this note
APA
WarmTransfer. (2026, September 25). SIP trunk redundancy and failover design: source note sip-trunk-redundancy-design-ms-gov-single-fqdn. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-trunk-redundancy-design-ms-gov-single-fqdn
BibTeX
@misc{warmtransfer-claim-sip-trunk-redundancy-design-ms-gov-single-fqdn,
title = {SIP trunk redundancy and failover design: source note sip-trunk-redundancy-design-ms-gov-single-fqdn},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-trunk-redundancy-design-ms-gov-single-fqdn},
note = {Source note sip-trunk-redundancy-design-ms-gov-single-fqdn, checked 2026-09-25}
}