When the Teams client switches to Appliance mode it shows a banner, and that banner is the only UI indicator: if the banner is absent the user is not in SBA mode and calling will not work.

Checked 2026-09-30

If the banner isn't present, the user isn't in SBA mode, and calling won't work.
Vendor
Microsoft
Product
Microsoft Teams Phone
Subsystem
Direct Routing SBA
Deployment
direct-routing
Region
not restricted
Release range
current as of 2026-09-30
Checked
2026-09-30

Sources

Cite this note

APA

WarmTransfer. (2026, September 30). Setting up a Survivable Branch Appliance for Teams Direct Routing: source note teams-sba-setup-banner-only-indicator. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-sba-setup-banner-only-indicator

BibTeX

@misc{warmtransfer-claim-teams-sba-setup-banner-only-indicator,
  title  = {Setting up a Survivable Branch Appliance for Teams Direct Routing: source note teams-sba-setup-banner-only-indicator},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/teams-sba-setup-banner-only-indicator},
  note   = {Source note teams-sba-setup-banner-only-indicator, checked 2026-09-30}
}

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