Source note · Setting up an Oracle SBC for Teams Direct Routing

Direct Routing considers an SBC healthy if it sent SIP OPTIONS within the last three minutes (three one-minute intervals); an SBC that did not is demoted and tried only after the other SBCs in the route, and equal healthy SBCs get calls distributed by Fisher-Yates shuffle.

Checked 2026-09-30

Vendor: Microsoft
Product: Microsoft Teams Phone Direct Routing
Subsystem: SIP OPTIONS
Deployment: multi-tenant
Region: not restricted
Release range: current as of 2026-09-30
Checked: 2026-09-30

Sources

Monitor Direct Routing — Microsoft · tier 2 current vendor documentation · Monitoring availability of Session Border Controllers using SIP options messages

Cite this note

APA

WarmTransfer. (2026, September 30). Setting up an Oracle SBC for Teams Direct Routing: source note oracle-sbc-teams-direct-routing-setup-options-health. WarmTransfer. https://warmtransfer.net/knowledge/claims/oracle-sbc-teams-direct-routing-setup-options-health

BibTeX

@misc{warmtransfer-claim-oracle-sbc-teams-direct-routing-setup-options-health,
  title  = {Setting up an Oracle SBC for Teams Direct Routing: source note oracle-sbc-teams-direct-routing-setup-options-health},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/oracle-sbc-teams-direct-routing-setup-options-health},
  note   = {Source note oracle-sbc-teams-direct-routing-setup-options-health, checked 2026-09-30}
}

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