To see whether device code flow is used, Microsoft suggests running the Conditional Access policy in report-only mode or filtering Entra sign-in logs with the Authentication protocol filter; the Conditional Access tab of a blocked sign-in shows whether an authentication flows policy matched.

Checked 2026-10-02

Vendor
Microsoft
Product
Microsoft Entra ID
Subsystem
conditional-access
Deployment
multi-tenant
Region
not restricted
Release range
current as of 2026-10-02
Checked
2026-10-02

Sources

Cite this note

APA

WarmTransfer. (2026, October 2). Troubleshooting phones signing in through Teams SIP Gateway: source note teams-sip-gateway-troubleshooting-signin-log-protocol. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-sip-gateway-troubleshooting-signin-log-protocol

BibTeX

@misc{warmtransfer-claim-teams-sip-gateway-troubleshooting-signin-log-protocol,
  title  = {Troubleshooting phones signing in through Teams SIP Gateway: source note teams-sip-gateway-troubleshooting-signin-log-protocol},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/teams-sip-gateway-troubleshooting-signin-log-protocol},
  note   = {Source note teams-sip-gateway-troubleshooting-signin-log-protocol, checked 2026-10-02}
}

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