Obtaining phone numbers from teams users in other tenants

Question

We are wondering if it would be possible for an application to obtain phone numbers for teams users in another tenant. We have an application set up that allows cross tenant teams recording through the use of a bot and complaince policies. However, we also want to be able to obtain the phone numbers of the users that are being recorded.

Ideally, we want to be able to do this with the c# graph SDK. If this isn't possible, is there a way to do this through powershell?

Answer 1

You can use Microsoft Teams PowerShell module to obtain phone numbers.

• Install the Microsoft Teams PowerShell module. You can find the module here.
• Connect to the other tenant using the Connect-MicrosoftTeams cmdlet and authenticate with the necessary permissions.
• Use the Get-CsPhoneNumberAssignment cmdlet to retrieve the phone numbers. Here's an example command:

Get-CsPhoneNumberAssignment -UserId "user-id"

Replace "user-id" with the user ID of the Teams user in the other tenant.
https://learn.microsoft.com/en-us/powershell/module/teams/Get-CsPhoneNumberAssignment?view=teams-ps

Thanks, 

Prasad Das

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