Because SIP devices are not Intune-managed, stricter Conditional Access checks apply to them; an organization using Conditional Access for devices on the corporate network should exclude its site public IP addresses and the SIP Gateway API app (0ab9de21-b802-4d77-b279-1ad41ca233b4).
Checked 2026-09-30
- Vendor
- Microsoft
- Product
- Microsoft Teams Phone
- Subsystem
- SIP Gateway authentication
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-30
- Checked
- 2026-09-30
Sources
- Configure SIP Gateway — Microsoft · tier 2 current vendor documentation · Configure conditional access
Cite this note
APA
WarmTransfer. (2026, September 30). Setting up SIP Gateway for Cisco and Poly phones on Teams: source note teams-sip-gateway-setup-ca-exclusion. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-sip-gateway-setup-ca-exclusion
BibTeX
@misc{warmtransfer-claim-teams-sip-gateway-setup-ca-exclusion,
title = {Setting up SIP Gateway for Cisco and Poly phones on Teams: source note teams-sip-gateway-setup-ca-exclusion},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/teams-sip-gateway-setup-ca-exclusion},
note = {Source note teams-sip-gateway-setup-ca-exclusion, checked 2026-09-30}
}