When a device signs itself out, Microsoft says to check that SIP Gateway is still enabled for the user and whether settings changed, for example the user's phone number being removed.

Checked 2026-10-02

Vendor
Microsoft
Product
Microsoft Teams SIP Gateway
Subsystem
authentication
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-self-signout-checks. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-sip-gateway-troubleshooting-self-signout-checks

BibTeX

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

Read in context