By default the SBC sends OPTIONS every minute, though this can vary by SBC vendor.

Checked 2026-09-25

Vendor
Microsoft
Product
Microsoft Teams Phone Direct Routing
Subsystem
sip-options
Deployment
multi-tenant
Region
not restricted
Release range
current as of 2026-09-25
Checked
2026-09-25

Sources

Cite this note

APA

WarmTransfer. (2026, September 25). Troubleshooting Teams Direct Routing: source note teams-direct-routing-troubleshooting-dash-options-1min. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-direct-routing-troubleshooting-dash-options-1min

BibTeX

@misc{warmtransfer-claim-teams-direct-routing-troubleshooting-dash-options-1min,
  title  = {Troubleshooting Teams Direct Routing: source note teams-direct-routing-troubleshooting-dash-options-1min},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/teams-direct-routing-troubleshooting-dash-options-1min},
  note   = {Source note teams-direct-routing-troubleshooting-dash-options-1min, checked 2026-09-25}
}

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