Source note · Setting up CUBE as a Microsoft Teams Direct Routing SBC

SIP/TLS from the SBC goes to the Microsoft SIP proxy on port 5061, and SIP/TLS from the Microsoft SIP proxy (source ports 1024-65535) goes to the port configured on the SBC.

Checked 2026-09-30

Vendor: Microsoft
Product: Microsoft Teams Phone
Subsystem: Direct Routing firewall
Deployment: multi-tenant
Region: not restricted
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 ports table

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-sip-ports. WarmTransfer. https://warmtransfer.net/knowledge/claims/cube-teams-direct-routing-setup-sip-ports

BibTeX

@misc{warmtransfer-claim-cube-teams-direct-routing-setup-sip-ports,
  title  = {Setting up CUBE as a Microsoft Teams Direct Routing SBC: source note cube-teams-direct-routing-setup-sip-ports},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cube-teams-direct-routing-setup-sip-ports},
  note   = {Source note cube-teams-direct-routing-setup-sip-ports, checked 2026-09-30}
}

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