Source note · Setting up Microsoft Teams Direct Routing
The commercial Direct Routing FQDNs resolve to 52.112.0.0/14 and 52.120.0.0/14, and the firewall must allow signaling to and from all of these ranges, not only the addresses returned by DNS.
Checked 2026-09-24
- Vendor
- Microsoft
- Product
- Microsoft Teams Phone
- Subsystem
- direct-routing-sip-signaling
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-24
- Checked
- 2026-09-24
Sources
- Plan Direct Routing — Microsoft (Microsoft Learn) · tier 2 current vendor documentation · SIP signaling: FQDNs, IP ranges and Important note
Cite this note
APA
WarmTransfer. (2026, September 24). Setting up Microsoft Teams Direct Routing: source note teams-direct-routing-setup-sip-ip-ranges. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-direct-routing-setup-sip-ip-ranges
BibTeX
@misc{warmtransfer-claim-teams-direct-routing-setup-sip-ip-ranges,
title = {Setting up Microsoft Teams Direct Routing: source note teams-direct-routing-setup-sip-ip-ranges},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/teams-direct-routing-setup-sip-ip-ranges},
note = {Source note teams-direct-routing-setup-sip-ip-ranges, checked 2026-09-24}
}