Source note · Teams Phone Direct Routing and SBC certification
GCC High uses the single Direct Routing FQDN sip.pstnhub.gov.teams.microsoft.us (52.127.88.0/21), and DoD uses sip.pstnhub.dod.teams.microsoft.us (52.127.64.0/21). Neither has secondary or tertiary FQDNs.
Checked 2026-09-23
- Vendor
- Microsoft
- Product
- Teams Phone Direct Routing
- Subsystem
- sip-signaling
- Deployment
- gcc-high, dod
- Region
- us
- Release range
- current as of 2026-09-23
- Checked
- 2026-09-23
Sources
- Plan for media bypass with Direct Routing — Microsoft · tier 2 current vendor documentation · sections 'Office 365 GCC DoD environment' and 'Office 365 GCC High environment' under 'SIP Signaling: FQDNs'
Cite this note
APA
WarmTransfer. (2026, September 23). Teams Phone Direct Routing and SBC certification: source note teams-direct-routing-gov-fqdns. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-direct-routing-gov-fqdns
BibTeX
@misc{warmtransfer-claim-teams-direct-routing-gov-fqdns,
title = {Teams Phone Direct Routing and SBC certification: source note teams-direct-routing-gov-fqdns},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/teams-direct-routing-gov-fqdns},
note = {Source note teams-direct-routing-gov-fqdns, checked 2026-09-23}
}