A banner in the Teams client is the only sign that it has switched to SBA (Appliance) mode. If no banner shows, the user is not in SBA mode and calling will not work.

Checked 2026-09-24

Vendor
Microsoft
Product
Teams Phone Direct Routing
Subsystem
survivable-branch-appliance
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). Remote site survivability patterns: source note survivability-remote-site-sba-banner. WarmTransfer. https://warmtransfer.net/knowledge/claims/survivability-remote-site-sba-banner

BibTeX

@misc{warmtransfer-claim-survivability-remote-site-sba-banner,
  title  = {Remote site survivability patterns: source note survivability-remote-site-sba-banner},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/survivability-remote-site-sba-banner},
  note   = {Source note survivability-remote-site-sba-banner, checked 2026-09-24}
}

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