The bulk sign-in error 'Public IP not configured as Trusted IP' means either the tenant ID in the provisioning URL is wrong or the device's public IP is not listed as a trusted IP in Teams admin center.
Checked 2026-10-02
- Vendor
- Microsoft
- Product
- Microsoft Teams SIP Gateway
- Subsystem
- bulk-sign-in
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-10-02
- Checked
- 2026-10-02
Sources
- Configure SIP Gateway — Microsoft · tier 2 current vendor documentation · Configure SIP Gateway > Bulk sign in error messages table, row 'Public IP not configured as Trusted IP.'
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting phones signing in through Teams SIP Gateway: source note teams-sip-gateway-troubleshooting-bulk-err-trusted-ip. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-sip-gateway-troubleshooting-bulk-err-trusted-ip
BibTeX
@misc{warmtransfer-claim-teams-sip-gateway-troubleshooting-bulk-err-trusted-ip,
title = {Troubleshooting phones signing in through Teams SIP Gateway: source note teams-sip-gateway-troubleshooting-bulk-err-trusted-ip},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/teams-sip-gateway-troubleshooting-bulk-err-trusted-ip},
note = {Source note teams-sip-gateway-troubleshooting-bulk-err-trusted-ip, checked 2026-10-02}
}