TeamsTelephoneNumber.ReadWrite.AllMicrosoft Graph permission · High risk
Allows the app to read your tenant's acquired telephone number details, without a signed-in user. Acquired telephone numbers may include attributes related to assigned object, emergency location, network site, etc.
Application permission
High riskRead and Modify Tenant-Acquired Telephone Number Details. Allows the app to read your tenant's acquired telephone number details, without a signed-in user. Acquired telephone numbers may include attributes related to assigned object, emergency location, network site, etc.
| ID | 0a42382f-155c-4eb1-9bdc-21548ccaa387 |
|---|---|
| Consent | Always needs admin consent |
| Risk | Can change data across the whole tenant. |
Delegated permission
High riskRead and Modify Tenant-Acquired Telephone Number Details. Allows the app to read and modify your tenant's acquired telephone number details on behalf of the signed-in admin user. Acquired telephone numbers may include attributes related to assigned object, emergency location, network site, etc.
| ID | 424b07a8-1209-4d17-9fe4-9018a93a1024 |
|---|---|
| Consent | Needs admin consent |
| Risk | Can change data across the whole tenant. |
Grant it to an app
In the portal: App registrations › your app › API permissions › Add a permission › Microsoft Graph › Application permissions, then grant admin consent. Or with Graph PowerShell:
Connect-MgGraph -Scopes "Application.Read.All", "AppRoleAssignment.ReadWrite.All"
$graph = Get-MgServicePrincipal -Filter "appId eq '00000003-0000-0000-c000-000000000000'"
$app = Get-MgServicePrincipal -Filter "appId eq '<your app's client id>'"
New-MgServicePrincipalAppRoleAssignment -ServicePrincipalId $app.Id `
-PrincipalId $app.Id -ResourceId $graph.Id -AppRoleId "0a42382f-155c-4eb1-9bdc-21548ccaa387"Ask for it when signing in
Delegated permissions act as the signed-in user, so the app can never do more than that user can.
Connect-MgGraph -Scopes "TeamsTelephoneNumber.ReadWrite.All"Which apps already have it?
# Apps that hold TeamsTelephoneNumber.ReadWrite.All as an application permission
Connect-MgGraph -Scopes "Application.Read.All"
$graph = Get-MgServicePrincipal -Filter "appId eq '00000003-0000-0000-c000-000000000000'"
Get-MgServicePrincipalAppRoleAssignedTo -ServicePrincipalId $graph.Id -All |
Where-Object AppRoleId -eq "0a42382f-155c-4eb1-9bdc-21548ccaa387" |
Select-Object PrincipalDisplayName, PrincipalId, CreatedDateTime# Apps with delegated consent for TeamsTelephoneNumber.ReadWrite.All
Connect-MgGraph -Scopes "Application.Read.All", "Directory.Read.All"
$graph = Get-MgServicePrincipal -Filter "appId eq '00000003-0000-0000-c000-000000000000'"
Get-MgOauth2PermissionGrant -All |
Where-Object { $_.ResourceId -eq $graph.Id -and ($_.Scope -split " ") -contains "TeamsTelephoneNumber.ReadWrite.All" } |
Select-Object ClientId, ConsentType, PrincipalId