[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 = "EvolveIP-USEast"
$VrPolicyNameWest = "EvolveIP-USWest"

# Enter the name of your tenant dial plan here
$TdpPolicyName = "EvolveIP-TenantDialPlan"

# 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 the next user." -ForegroundColor Yellow; Continue }

    # This will check the user's phone number, and set it to the E.164 format 
    $PhoneNumber = ""
    $PhoneNumber = $User.PhoneNumber.trim()
    
    # Check the length of the number, and assume "+" is not included in the number
    If ($PhoneNumber -notmatch "^\d+$" -or $PhoneNumber.Length -lt 10 -or $PhoneNumber.Length -gt 11) {
        Write-Host "User phone number is not valid: $($PhoneNumber)" -ForegroundColor Yellow
        Write-Host "Continuing to the next user." -ForegroundColor Yellow
        Continue
    }
    
    # Check if the phone number starts with the US country code, and add the "+" to the front of the number
    If (-not($PhoneNumber.StartsWith('1')) -and $PhoneNumber.Length -eq 10) { $PhoneNumber = "+1$($PhoneNumber)" }
    ElseIf ($PhoneNumber.StartsWith('1') -and $PhoneNumber.Length -eq 11) { $PhoneNumber = "+$($PhoneNumber)" }
    Else { 
        Write-Host "User phone number is not valid: $($PhoneNumber)" -ForegroundColor Yellow
        Write-Host "Continuing to the next user." -ForegroundColor Yellow
        Continue
    }
    
    # This will define the user's direct routing properties
    $CsUserProp = @{
        Identity        = $User.UserUpn
        PhoneNumber     = $PhoneNumber
        PhoneNumberType = "DirectRouting"
    }

    # 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 the 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-CsPhoneNumberAssignment @CsUserProp -ErrorAction Stop
        Write-Host "User enabled for direct routing."
    } Catch { Write-Host "Failed to enable user for direct routing. Continuing to the next user." -ForegroundColor Yellow; Continue }
  
    Try {
        Grant-CsOnlineVoiceRoutingPolicy -Identity $User.UserUPN -PolicyName $Vrp -ErrorAction Stop
        Write-Host "User assigned a VRP: $($Vrp)"
    } Catch { Write-Host "Failed to assign the VRP: $($Vrp)" -ForegroundColor Yellow }

    Try {
        Grant-CsTenantDialPlan -Identity $User.UserUPN -PolicyName $TdpPolicyName -ErrorAction Stop
        Write-Host "User assigned a Tenant Dial Plan: $($TdpPolicyName)"
    } Catch { Write-Host "Failed to assign a Tenant Dial Plan: $($TdpPolicyName)" -ForegroundColor Yellow }

} # End ForEach

[CmdletBinding()]
Param ()

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

# Enter the name of your voice routing policies here
$VrPolicyNameNNpeer01 = "EvolveIP-NLNNpeer01"
$VrPolicyNameNNpeer02 = "EvolveIP-NLNNpeer02"

# Enter the name of your tenant dial plan here
$TdpPolicyName = "EvolveIP-TenantDialPlan"

# 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 "NNpeer01") { $Vrp = $VrPolicyNameNNpeer01 }
    ElseIf ($User.Location.trim() -eq "NNpeer02") { $Vrp = $VrPolicyNameNNpeer02 }
    Else { Write-Host "No location defined. Continuing to next user." -ForegroundColor Yellow; Continue }

    # This will define the user's direct routing properties
    $CsUserProp = @{
        Identity        = $User.UserUpn         
        PhoneNumber     = "+$($User.PhoneNumber)"          
        PhoneNumberType = "DirectRouting"
    }

    # 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-CsPhoneNumberAssignment @CsUserProp -ErrorAction Stop
        Write-Host "User enabled for direct routing."
    } Catch { Write-Host "Failed to enable user for direct routing. 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 direct routing" -ForegroundColor Green
    } Catch { Write-Host "Failed to assign the VRP: $($Vrp)" -ForegroundColor Yellow }

    Try {
        Grant-CsTenantDialPlan -Identity $User.UserUPN -PolicyName $TdpPolicyName -ErrorAction Stop
        Write-Host "User assigned a Tenant Dial Plan: $($TdpPolicyName)"
    } Catch { Write-Host "Failed to assign a Tenant Dial Plan: $($TdpPolicyName)" -ForegroundColor Yellow }

} # End ForEach