TeamsSpeedDial-USA.ps1

#Import the Azure AD Internals module.
Import-Module AADInternals

#Users to process
$Users = import-csv c:\temp\users.csv

foreach($user in $users){

$password = ConvertTo-SecureString $user.password -AsPlainText -Force
$Cred = New-Object System.Management.Automation.PSCredential -ArgumentList ($($user.upn), $password)

#Get the Teams token for user curently beeing processed.
$token = Get-AADIntAccessTokenForTeams -Credentials $cred

#URL to buddylists.
#The url is difrent depending on theregion your tenant is hosted in. This URL is from the USA, therefore /part/amer-03/ in the URL.
$URL = "https://teams.microsoft.com/api/mt/part/amer-03/beta/contacts/buddylist/"

$header = @{Authorization = "Bearer $token"}

#Get id of the Speed Dial list.
$ListID = ((Invoke-RestMethod -Uri $URL  -Method GET -Headers $header -ContentType "application/json").value | Where-Object{$_.displayname -like "Favorites"}).id


#URL for the Speed Dial list.
$URL = "https://teams.microsoft.com/api/mt/part/amer-03/beta/contacts/buddylist/$ListID/managebuddies?migrationRequested=true&federatedContactsSupported=true"

#Number to Add. MRI is the phonenumber of the contact, same as phone property. If contact to be added is a internal user, add the request like this:
#{"add":[{"mri":"8:orgid:18c4a91b-4fa9-4fbd-ab1c-b39465d81baf","displayName":"Admin","isFederated":false,"email":"[email protected]"}]}
#To find the org id, run this command and look for it in a users buddies list:
#(Invoke-RestMethod -Uri $URL  -Method GET -Headers $header -ContentType "application/json").value
$payload1 = @'
{"add":[{"mri":"4:123456789","displayName":"Helpdesk","phone":"123456789","companyName":"Contoso","jobTitle":""}]}
'@

#Add phonenumber 1 to Speed Dial list.
Invoke-RestMethod -Uri $URL -Body $payload1 -Method POST -Headers $header -ContentType "application/json"

$payload2 = @'
{"add":[{"mri":"4:987654321","displayName":"Reception","phone":"987654321","companyName":"Contoso","jobTitle":""}]}
'@

#Add phonenumber 2 to Speed Dial list.
Invoke-RestMethod -Uri $URL -Body $payload2 -Method POST -Headers $header -ContentType "application/json"


}

Edited script from https://alexholmeset.blog/2021/12/13/microsoft-teams-speed-dial-contacts-provisioning/ to support USA tenants