Source note · UC observability and synthetic monitoring
Teams Direct Routing treats an SBC as healthy if it sent SIP OPTIONS within the last three minutes (three one-minute intervals); otherwise the SBC is demoted in the route but still retried before the call fails.
Checked 2026-09-24
- Vendor
- Microsoft
- Product
- Teams Phone Direct Routing
- Subsystem
- SBC health monitoring
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-24
- Checked
- 2026-09-24
Sources
- Monitor Direct Routing — Microsoft · tier 2 current vendor documentation · Section 'Monitoring availability of Session Border Controllers using Session Initiation Protocol (SIP) options messages'
Cite this note
APA
WarmTransfer. (2026, September 24). UC observability and synthetic monitoring: source note observability-uc-dr-sip-options-health. WarmTransfer. https://warmtransfer.net/knowledge/claims/observability-uc-dr-sip-options-health
BibTeX
@misc{warmtransfer-claim-observability-uc-dr-sip-options-health,
title = {UC observability and synthetic monitoring: source note observability-uc-dr-sip-options-health},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/observability-uc-dr-sip-options-health},
note = {Source note observability-uc-dr-sip-options-health, checked 2026-09-24}
}