Source note · Setting up CUBE as a Microsoft Teams Direct Routing SBC
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), with no secondary or tertiary FQDNs.
Checked 2026-09-30
- Vendor
- Microsoft
- Product
- Microsoft Teams Phone
- Subsystem
- Direct Routing signaling
- Deployment
- multi-tenant
- Region
- us-government
- Release range
- current as of 2026-09-30
- Checked
- 2026-09-30
Sources
- Plan Direct Routing — Microsoft (Microsoft Learn) · tier 2 current vendor documentation · SIP signaling: GCC High; SIP signaling: DoD; Media processor IP ranges
Cite this note
APA
WarmTransfer. (2026, September 30). Setting up CUBE as a Microsoft Teams Direct Routing SBC: source note cube-teams-direct-routing-setup-gov-fqdns. WarmTransfer. https://warmtransfer.net/knowledge/claims/cube-teams-direct-routing-setup-gov-fqdns
BibTeX
@misc{warmtransfer-claim-cube-teams-direct-routing-setup-gov-fqdns,
title = {Setting up CUBE as a Microsoft Teams Direct Routing SBC: source note cube-teams-direct-routing-setup-gov-fqdns},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cube-teams-direct-routing-setup-gov-fqdns},
note = {Source note cube-teams-direct-routing-setup-gov-fqdns, checked 2026-09-30}
}