# Review a list of the user's properties related to Direct Routing
Get-CsOnlineUser user@domain.com | FL DisplayName, SipAddress, Enabled, InterpretedUserType, TeamsUpgrade*, EnterpriseVoiceEnabled, OnlineVoiceRoutingPolicy, TeamsVoiceRoute, TeamsCallingPolicy, VoicePolicy, HostedVoicemail*, OnPremLineURI, LineURI

# Review all of the user's properties
Get-CsOnlineUser user@domain.com | FL *

# Export a list of all voice users and their properties to a CSV file
$CsvFilePath = "C:\Path\to\file.csv"

Get-CsOnlineUser -ResultSize Unlimited | Select DisplayName, SipAddress, Enabled, InterpretedUserType, TeamsUpgrade*, EnterpriseVoiceEnabled, OnlineVoiceRoutingPolicy, TeamsVoiceRoute, TeamsCallingPolicy, VoicePolicy, HostedVoicemail*, OnPremLineURI, LineURI | Export-Csv $CsvFilePath -nti

Get-CsOnlineVoiceRoutingPolicy | Where { $_.Identity -like "*EIP*" }

# Enter the name of the EIP voice routing policy here 
$VrPolicyName = "EIP-TDR-VRP-AllCalls-East"

# Define the user's properties to enable Direct Routing
# Modify the user's UPN, and don't forget to define the user's phone number

$CsUserProp = @{
  Identity               = "user@domain.com"
  EnterpriseVoiceEnabled = $True
  OnPremLineUri          = "tel:+16105551234"
}

# This will check if the user's coexistence mode is set to TeamsOnly for Direct Routing. If not, it will be set. 
If ((Get-CsOnlineUser $CsUserProp.Identity).TeamsUpgradeEffectiveMode -ne "TeamsOnly") {
  Grant-CsTeamsUpgradePolicy -Identity $CsUserProp.Identity -PolicyName UpgradeToTeams
}

# This will configure the user's account for Direct Routing & add the account to the voice routing policy
Set-CsUser @CsUserProp
Grant-CsOnlineVoiceRoutingPolicy -Identity $CsUserProp.Identity -PolicyName $VrPolicyName

Get-CsOnlineVoiceRoutingPolicy | Where { $_.Identity -like "*EIP*" }

[CmdletBinding()]
Param ()

# Path to the CSV file
$UserData = Import-Csv "C:\Path\to\file.csv"

# Enter the name of your voice routing policies here 
$VrPolicyNameEast = "EIP-TDR-VRP-AllCalls-East"
$VrPolicyNameWest = "EIP-TDR-VRP-AllCalls-West"


# The following will loop through each entry in the CSV file and output the provisioning status to the console

ForEach ($User in $UserData) {
  
    Write-Host "`nPROVISIONING: $($User.DisplayName) ($($User.UserUPN))"

    # This will check the user's location and associate it with the correct routing policy
    If ($User.Location.trim() -eq "east") { $Vrp = $VrPolicyNameEast } 
    ElseIf ($User.Location.trim() -eq "west") { $Vrp = $VrPolicyNameWest }
    Else { Write-Host "No location defined. Continuing to next user." -ForegroundColor Yellow; Continue }

    # This will define the user's Direct Routing properties
    $CsUserProp = @{
        Identity               = $User.UserUpn
        EnterpriseVoiceEnabled = $True
        OnPremLineUri          = "tel:+$($User.PhoneNumber)"
    }

    # This will check if the user's coexistence mode is set to TeamsOnly. If not, it will be set.
    If ((Get-CsOnlineUser $CsUserProp.Identity).TeamsUpgradeEffectiveMode -ne "TeamsOnly") {
        Try {
            Grant-CsTeamsUpgradePolicy -Identity $CsUserProp.Identity -PolicyName UpgradeToTeams -ErrorAction Stop
            Write-Host "User set to TeamsOnly coexistence mode."
        } Catch { Write-Host "Failed to set user to TeamsOnly coexistence mode. Continuing to next user." -ForegroundColor Yellow; Continue }
    }

  # This will configure the user's account for Direct Routing & add the account to your voice routing policy
    Try {
        Set-CsUser @CsUserProp -ErrorAction Stop
        Write-Host "User enabled for TDR."
    } Catch { Write-Host "Failed to enable user for TDR. Continuing to next user." -ForegroundColor Yellow; Continue }
  
    Try {
        Grant-CsOnlineVoiceRoutingPolicy -Identity $User.UserUPN -PolicyName $Vrp -ErrorAction Stop
        Write-Host "User assigned a VRP: $($Vrp)"
        Write-Host "User successfully provisioned for Teams Direct Routing" -ForegroundColor Green
    } Catch { Write-Host "Failed to assign the VRP: $($Vrp)" -ForegroundColor Yellow }

} # End ForEach