Teams Direct Routing signalling is SIP over TLS only: the SBC connects to Microsoft SIP proxies on port 5061, and Microsoft connects to the SBC on a port configured on the SBC.
Checked 2026-10-02
- Vendor
- Microsoft
- Product
- Teams Direct Routing
- Subsystem
- SIP signalling
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-10-02
- Checked
- 2026-10-02
Sources
- Plan Direct Routing — Microsoft (Microsoft Learn) · tier 2 current vendor documentation · Section 'SIP signaling ports'
Cite this note
APA
WarmTransfer. (2026, October 2). SIP trunk authentication: registration and static IP and mutual TLS: source note sip-trunk-authentication-models-teams-dr-tls-port-5061. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-trunk-authentication-models-teams-dr-tls-port-5061
BibTeX
@misc{warmtransfer-claim-sip-trunk-authentication-models-teams-dr-tls-port-5061,
title = {SIP trunk authentication: registration and static IP and mutual TLS: source note sip-trunk-authentication-models-teams-dr-tls-port-5061},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-trunk-authentication-models-teams-dr-tls-port-5061},
note = {Source note sip-trunk-authentication-models-teams-dr-tls-port-5061, checked 2026-10-02}
}