The Direct Routing health dashboard says the SBC sends OPTIONS every minute by default, that this can vary by SBC vendor, and that Direct Routing warns when OPTIONS are not being sent or are not configured.

Checked 2026-09-24

Vendor
Microsoft
Product
Teams Phone Direct Routing
Subsystem
health dashboard
Deployment
multi-tenant
Region
not restricted
Release range
current as of 2026-09-24
Checked
2026-09-24

Sources

Cite this note

APA

WarmTransfer. (2026, September 24). SIP OPTIONS pings and trunk keepalives: source note sip-options-keepalive-dr-dashboard-default-minute. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-options-keepalive-dr-dashboard-default-minute

BibTeX

@misc{warmtransfer-claim-sip-options-keepalive-dr-dashboard-default-minute,
  title  = {SIP OPTIONS pings and trunk keepalives: source note sip-options-keepalive-dr-dashboard-default-minute},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/sip-options-keepalive-dr-dashboard-default-minute},
  note   = {Source note sip-options-keepalive-dr-dashboard-default-minute, checked 2026-09-24}
}

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