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

Microsoft's SIP protocol page tells administrators to make sure the SBC does not use Replaces headers in SIP requests, because Direct Routing rejects SIP requests that carry them.

disputed · Checked 2026-09-30

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

Sources

Teams Phone System Direct Routing: SIP protocol — Microsoft · tier 2 current vendor documentation · Processing the incoming request: finding the tenant and user, Note, third bullet

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-replaces-reject. WarmTransfer. https://warmtransfer.net/knowledge/claims/oracle-sbc-teams-direct-routing-setup-replaces-reject

BibTeX

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

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