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Microsoft

MS-720 · Question #28

You have a Microsoft Teams Phone deployment and a Survivable Branch Appliance (SBA) at a site. You add a new Teams user. You need to ensure that the user at the site can place and receive PSTN calls…

The correct answer is C. Run the Grant-CsTeamsSurvivableBranchAppliancePolicy cmdlet. Running Grant-CsTeamsSurvivableBranchAppliancePolicy is the required step because it assigns the SBA policy directly to the user, telling Teams which Survivable Branch Appliance to use when internet connectivity is lost - without this assignment, the SBA exists at the site but…

Configure and manage Microsoft Teams Phone for voice users

Question

You have a Microsoft Teams Phone deployment and a Survivable Branch Appliance (SBA) at a site. You add a new Teams user. You need to ensure that the user at the site can place and receive PSTN calls in the event of an internet outage. What should you do?

Options

  • AAdd the user as a member of a call queue.
  • BModify the online voice routing policy.
  • CRun the Grant-CsTeamsSurvivableBranchAppliancePolicy cmdlet.
  • DRun the Grant-CsTenantDialPlan cmdlet.

How the community answered

(34 responses)
  • A
    3% (1)
  • B
    9% (3)
  • C
    71% (24)
  • D
    18% (6)

Explanation

Running Grant-CsTeamsSurvivableBranchAppliancePolicy is the required step because it assigns the SBA policy directly to the user, telling Teams which Survivable Branch Appliance to use when internet connectivity is lost - without this assignment, the SBA exists at the site but the user has no association to it. Option A is wrong because joining a call queue is a routing/distribution feature unrelated to outage survivability. Option B is wrong because the online voice routing policy controls PSTN call routing paths (which gateway to use), not failover behavior during outages. Option D is wrong because Grant-CsTenantDialPlan handles number normalization rules, not SBA assignment.

Memory tip: Think of it as "you must grant the user their lifeboat." The SBA is the lifeboat already docked at the site - Grant-CsTeamsSurvivableBranchAppliancePolicy is what puts the user's name on it.

Topics

#Teams Phone Survivability#Survivable Branch Appliance (SBA)#PSTN Connectivity#PowerShell Cmdlets

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