Source note · SIP trunk redundancy and failover design
Direct Routing health monitoring is based on OPTIONS sent by the SBC to Microsoft, and no tenant administrator action is needed to enable it.
Checked 2026-09-25
- Vendor
- Microsoft
- Product
- Teams Phone Direct Routing
- Subsystem
- SBC health monitoring
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-25
- Checked
- 2026-09-25
Sources
- Monitor Direct Routing — Microsoft · tier 2 current vendor documentation · Monitoring availability of Session Border Controllers using SIP options messages, first paragraph
Cite this note
APA
WarmTransfer. (2026, September 25). SIP trunk redundancy and failover design: source note sip-trunk-redundancy-design-ms-options-sbc-originated. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-trunk-redundancy-design-ms-options-sbc-originated
BibTeX
@misc{warmtransfer-claim-sip-trunk-redundancy-design-ms-options-sbc-originated,
title = {SIP trunk redundancy and failover design: source note sip-trunk-redundancy-design-ms-options-sbc-originated},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-trunk-redundancy-design-ms-options-sbc-originated},
note = {Source note sip-trunk-redundancy-design-ms-options-sbc-originated, checked 2026-09-25}
}