Tenants using bulk sign-in, or whose SIP devices were signed in before July 2023, need location-based Conditional Access exclusions for the SIP Gateway service IPs (North America 52.170.38.140 and 40.112.144.212; EMEA 40.112.71.149 and 40.113.112.67; APAC 20.92.120.71 and 13.73.115.90).
Checked 2026-10-02
- Vendor
- Microsoft
- Product
- Microsoft Teams SIP Gateway
- Subsystem
- conditional-access
- 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 > Configure conditional access > Note
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting phones signing in through Teams SIP Gateway: source note teams-sip-gateway-troubleshooting-ca-legacy-service-ips. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-sip-gateway-troubleshooting-ca-legacy-service-ips
BibTeX
@misc{warmtransfer-claim-teams-sip-gateway-troubleshooting-ca-legacy-service-ips,
title = {Troubleshooting phones signing in through Teams SIP Gateway: source note teams-sip-gateway-troubleshooting-ca-legacy-service-ips},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/teams-sip-gateway-troubleshooting-ca-legacy-service-ips},
note = {Source note teams-sip-gateway-troubleshooting-ca-legacy-service-ips, checked 2026-10-02}
}