Public/Functions/UserManagement/TeamsCommonAreaPhone/New-TeamsCommonAreaPhone.ps1

# Module: TeamsFunctions
# Function: VoiceConfig
# Author: David Eberhardt
# Updated: 24-MAY-2021
# Status: RC

# https://www.graham-walsh.com/creating-a-common-area-phones-for-microsoft-teams/ - check setup against blog


function New-TeamsCommonAreaPhone {
  <#
  .SYNOPSIS
    Creates a new Common Area Phone
  .DESCRIPTION
    This CmdLet creates an AzureAdUser Object, applies a UsageLocation
    If a License is applied, a PhoneNumber, IP Phone Policy, Calling Policy and Call Park Policy can be applied.
  .PARAMETER UserPrincipalName
    Required. The UPN for the new CommonAreaPhone. Invalid characters are stripped from the provided string
  .PARAMETER DisplayName
    Optional. The Name it will show up as in Teams. Invalid characters are stripped from the provided string
  .PARAMETER UsageLocation
    Required. Two Digit Country Code of the Location of the entity. Should correspond to the Phone Number.
    Before a License can be assigned, the account needs a Usage Location populated.
  .PARAMETER License
    Optional. Specifies the License to be assigned: PhoneSystem or PhoneSystem_VirtualUser
    If not provided, will default to PhoneSystem_VirtualUser
    Unlicensed Objects can exist, but cannot be assigned a phone number
    PhoneSystem is an add-on license and cannot be assigned on its own. it has therefore been deactivated for now.
  .PARAMETER Password
    Optional. PowerShell SecureString
    If not provided a Password will be generated with the string "CAP-" and todays date in the format: "CAP-03-JAN-2021"
  .PARAMETER IPPhonePolicy
    Optional. Adds an IP Phone Policy to the User
  .PARAMETER TeamsCallingPolicy
    Optional. Adds a Calling Policy to the User
  .PARAMETER TeamsCallParkPolicy
    Optional. Adds a Call Park Policy to the User
  .EXAMPLE
    New-TeamsCommonAreaPhone -UserPrincipalName "My Lobby Phone@TenantName.onmicrosoft.com" -UsageLocation US
    Will create a CommonAreaPhone with a Usage Location for 'US' and assign the CommonAreaPhone License
    User Principal Name will be normalised to: MyLobbyPhone@TenantName.onmicrosoft.com
    DisplayName will be taken from the User PrincipalName and normalised to "MyLobbyPhone"
    No Policies will be assigned to the Common Area Phone, the Global Policy will be in effect for this Phone
  .EXAMPLE
    New-TeamsCommonAreaPhone -UserPrincipalName "Lobby.@TenantName.onmicrosoft.com" -Displayname "Lobby {Phone}" -UsageLocation US -License CommonAreaPhone
    Will create a CommonAreaPhone with a Usage Location for 'US' and assign the CommonAreaPhone License
    User Principal Name will be normalised to: Lobby@TenantName.onmicrosoft.com
    DisplayName will be normalised to "Lobby Phone"
    No Policies will be assigned to the Common Area Phone, the Global Policy will be in effect for this Phone
  .EXAMPLE
    New-TeamsCommonAreaPhone -UserPrincipalName "Lobby@TenantName.onmicrosoft.com" -Displayname "Lobby Phone" -UsageLocation US -License Office365E3,PhoneSystem
    Will create a CommonAreaPhone with a Usage Location for 'US' and assign the Office 365 E3 License as well as PhoneSystem
    No Policies will be assigned to the Common Area Phone, the Global Policy will be in effect for this Phone
  .EXAMPLE
    New-TeamsCommonAreaPhone -UserPrincipalName "Lobby@TenantName.onmicrosoft.com" -Displayname "Lobby Phone" -UsageLocation US -IPPhonePolicy "My IPP" -TeamsCallingPolicy "CallP" -TeamsCallParkPolicy "CallPark"
    Will create a CommonAreaPhone with a Usage Location for 'US' and assign the CommonAreaPhone License
    The supplied Policies will be assigned to the Common Area Phone
  .INPUTS
    System.String
  .OUTPUTS
    System.Object
  .NOTES
    Execution requires User Admin Role in Azure AD
    This CmdLet deliberately does not apply a Phone Number to the Object. To do so, please run New-TeamsUserVoiceConfig
    or Set-TeamsUserVoiceConfig. For a full Voice Configuration apply a Calling Plan or Online Voice Routing Policy
    a Phone Number and optionally a Tenant Dial Plan.
    This Script only covers relevant elements for Common Area Phones themselves.
  .COMPONENT
    UserManagement
  .FUNCTIONALITY
    Creates a Common Area Phone in AzureAD for use in Teams
  .LINK
    https://github.com/DEberhardt/TeamsFunctions/tree/master/docs/
  .LINK
    about_UserManagement
  .LINK
    about_VoiceConfiguration
  .LINK
    Get-TeamsCommonAreaPhone
  .LINK
    New-TeamsCommonAreaPhone
  .LINK
    Set-TeamsCommonAreaPhone
  .LINK
    Remove-TeamsCommonAreaPhone
  .LINK
    Find-TeamsUserVoiceConfig
  .LINK
    Get-TeamsUserVoiceConfig
  .LINK
    New-TeamsUserVoiceConfig
  .LINK
    Set-TeamsUserVoiceConfig
  #>


  [CmdletBinding(SupportsShouldProcess, ConfirmImpact = 'Medium')]
  [Alias('New-TeamsCAP')]
  [OutputType([System.Object])]
  param (
    [Parameter(Mandatory, Position = 0, ValueFromPipeline, ValueFromPipelineByPropertyName, HelpMessage = 'UPN of the Object to create.')]
    [ValidateScript( {
        If ($_ -match '@') {
          $True
        }
        else {
          Write-Host 'Must be a valid UPN' -ForegroundColor Red
          $false
        }
      })]
    [Alias('Identity')]
    [string]$UserPrincipalName,

    [Parameter(ValueFromPipelineByPropertyName, HelpMessage = 'Display Name for this Object')]
    [string]$DisplayName,

    [Parameter(Mandatory = $true, HelpMessage = 'Usage Location to assign')]
    [string]$UsageLocation,

    [Parameter(HelpMessage = 'License to be assigned')]
    [ValidateScript( {
        $LicenseParams = (Get-AzureAdLicense -WarningAction SilentlyContinue -ErrorAction SilentlyContinue).ParameterName.Split('', [System.StringSplitOptions]::RemoveEmptyEntries)
        if ($_ -in $LicenseParams) {
          return $true
        }
        else {
          Write-Host "Parameter 'License' - Invalid license string. Supported Parameternames can be found with Get-AzureAdLicense" -ForegroundColor Red
          return $false
        }
      })]
    [string]$License,

    [Parameter(HelpMessage = 'Password to be assigned to the account. Min 8 characters')]
    [SecureString]$Password,

    [Parameter(HelpMessage = 'IP Phone Policy')]
    [string]$IPPhonePolicy,

    [Parameter(HelpMessage = 'Teams Calling Policy')]
    [string]$TeamsCallingPolicy,

    [Parameter(HelpMessage = 'Teams Call Park Policy')]
    [string]$TeamsCallParkPolicy

  ) #param

  begin {
    Show-FunctionStatus -Level RC
    Write-Verbose -Message "[BEGIN ] $($MyInvocation.MyCommand)"
    Write-Verbose -Message "Need help? Online: $global:TeamsFunctionsHelpURLBase$($MyInvocation.MyCommand)`.md"

    # Asserting AzureAD Connection
    if (-not (Assert-AzureADConnection)) { break }

    # Asserting MicrosoftTeams Connection
    if (-not (Assert-MicrosoftTeamsConnection)) { break }

    # Setting Preference Variables according to Upstream settings
    if (-not $PSBoundParameters.ContainsKey('Verbose')) { $VerbosePreference = $PSCmdlet.SessionState.PSVariable.GetValue('VerbosePreference') }
    if (-not $PSBoundParameters.ContainsKey('Confirm')) { $ConfirmPreference = $PSCmdlet.SessionState.PSVariable.GetValue('ConfirmPreference') }
    if (-not $PSBoundParameters.ContainsKey('WhatIf')) { $WhatIfPreference = $PSCmdlet.SessionState.PSVariable.GetValue('WhatIfPreference') }
    if (-not $PSBoundParameters.ContainsKey('Debug')) { $DebugPreference = $PSCmdlet.SessionState.PSVariable.GetValue('DebugPreference') } else { $DebugPreference = 'Continue' }
    if ( $PSBoundParameters.ContainsKey('InformationAction')) { $InformationPreference = $PSCmdlet.SessionState.PSVariable.GetValue('InformationAction') } else { $InformationPreference = 'Continue' }

    # Initialising counters for Progress bars
    [int]$step = 0
    [int]$sMax = 9

  } #begin

  process {
    Write-Verbose -Message "[PROCESS] $($MyInvocation.MyCommand)"
    $Parameters = @{}

    #region PREPARATION
    $Status = 'Verifying input'
    #region Normalising $UserPrincipalname
    $Operation = 'Normalising UserPrincipalName'
    Write-Progress -Id 0 -Status $Status -CurrentOperation $Operation -Activity $MyInvocation.MyCommand -PercentComplete ($step / $sMax * 100)
    Write-Verbose -Message "$Status - $Operation"
    $UPN = Format-StringForUse -InputString $UserPrincipalName -As UserPrincipalName
    Write-Verbose -Message "UserPrincipalName normalised to: '$UPN'"
    $Parameters += @{ 'UserPrincipalName' = "$UPN" }

    # MailNickName
    $MailnickName = Format-StringForUse -InputString $($UserPrincipalName.Split('@')[0]) -As DisplayName
    $Parameters += @{ 'MailNickName' = "$MailnickName" }
    #endregion

    #region Normalising $DisplayName
    $Operation = 'Normalising DisplayName'
    $step++
    Write-Progress -Id 0 -Status $Status -CurrentOperation $Operation -Activity $MyInvocation.MyCommand -PercentComplete ($step / $sMax * 100)
    Write-Verbose -Message "$Status - $Operation"
    if ($PSBoundParameters.ContainsKey('DisplayName')) {
      $Name = Format-StringForUse -InputString $DisplayName -As DisplayName
    }
    else {
      $Name = $MailnickName
    }
    Write-Verbose -Message "DisplayName normalised to: '$Name'"
    $Parameters += @{ 'DisplayName' = "$Name" }
    #endregion

    #region UsageLocation
    $Operation = 'Parsing UsageLocation'
    $step++
    Write-Progress -Id 0 -Status $Status -CurrentOperation $Operation -Activity $MyInvocation.MyCommand -PercentComplete ($step / $sMax * 100)
    Write-Verbose -Message "$Status - $Operation"
    if ($PSBoundParameters.ContainsKey('UsageLocation')) {
      Write-Verbose -Message "'$Name' UsageLocation parsed: Using '$UsageLocation'"
    }
    else {
      # Querying Tenant Country as basis for Usage Location
      # This is never triggered as UsageLocation is mandatory! Remaining here regardless
      $Tenant = Get-CsTenant -WarningAction SilentlyContinue
      if ($null -ne $Tenant.CountryAbbreviation) {
        $UsageLocation = $Tenant.CountryAbbreviation
        Write-Warning -Message "'$Name' UsageLocation not provided. Defaulting to: $UsageLocation. - Please verify and change if needed!"
      }
      else {
        Write-Error -Message "'$Name' Usage Location not provided and Country not found in the Tenant!" -Category ObjectNotFound -RecommendedAction 'Please run command again and specify -UsageLocation' -ErrorAction Stop
      }
    }
    $Parameters += @{ 'UsageLocation' = "$UsageLocation" }
    #endregion


    #region Password Profile
    $Operation = 'Password Profile'
    $step++
    Write-Progress -Id 0 -Status $Status -CurrentOperation $Operation -Activity $MyInvocation.MyCommand -PercentComplete ($step / $sMax * 100)
    Write-Verbose -Message "$Status - $Operation"

    $PasswordProfile = New-Object -TypeName Microsoft.Open.AzureAD.Model.PasswordProfile
    $PasswordProfile.EnforceChangePasswordPolicy = $true
    $PasswordProfile.ForceChangePasswordNextLogin = $true
    if ($PSBoundParameters.ContainsKey('Password')) {
      $PasswordProfile.Password = $Password
    }
    else {
      #VALIDATE Check for alternatives to the below
      $PasswordFormat = 'CAP-' + $(Get-Date -Format 'dd-MMM-yyyy')
      $PasswordProfile.Password = $PasswordFormat | ConvertTo-SecureString -AsPlainText -Force
    }
    $Parameters += @{ 'PasswordProfile' = $PasswordProfile }
    $Parameters += @{ 'AccountEnabled' = $true }
    #endregion

    #Common Parameters
    $Parameters += @{ 'ErrorAction' = 'STOP' }
    #endregion


    #region ACTION
    $Status = 'Creating Object'
    #region Creating Account
    $Operation = 'Creating Common Area Phone'
    $step++
    Write-Progress -Id 0 -Status $Status -CurrentOperation $Operation -Activity $MyInvocation.MyCommand -PercentComplete ($step / $sMax * 100)
    Write-Verbose -Message "$Status - $Operation"
    try {
      #Trying to create the Common Area Phone
      Write-Verbose -Message "'$Name' Creating Common Area Phone with New-AzureAdUser..."
      if ($PSBoundParameters.ContainsKey('Debug') -or $DebugPreference -eq 'Continue') {
        "Function: $($MyInvocation.MyCommand.Name) - Parameters", ($Parameters | Format-Table -AutoSize | Out-String).Trim() | Write-Debug
      }
      if ($PSCmdlet.ShouldProcess("$UPN", 'New-AzureAdUser')) {
        $AzureAdUser = New-AzureADUser @Parameters
        if ($PSBoundParameters.ContainsKey('Debug') -or $DebugPreference -eq 'Continue') {
          "Function: $($MyInvocation.MyCommand.Name) - AzureAdUser created", ($AzureAdUser | Format-Table -AutoSize | Out-String).Trim() | Write-Debug
        }
        $i = 0
        $iMax = 30
        Write-Information -MessageData "INFO: Common Area Phone '$Name' created; Waiting for AzureAd to write object ($iMax s)"
        $Status = 'Querying User'
        $Operation = 'Waiting for Get-AzureAdUser to return a Result'
        Write-Verbose -Message "$Status - $Operation"
        while ( -not (Test-AzureADUser "$UPN")) {
          if ($i -gt $iMax) {
            Write-Error -Message "Could not find Object in AzureAD in the last $iMax Seconds" -Category ObjectNotFound -RecommendedAction 'Please verify Object has been created (UserPrincipalName); Continue with Set-TeamsCommonAreaPhone'
            return
          }
          Write-Progress -Id 1 -Activity 'Azure Active Directory is applying License. Please wait' `
            -Status $Status -SecondsRemaining $($iMax - $i) -CurrentOperation $Operation -PercentComplete (($i * 100) / $iMax)

          Start-Sleep -Milliseconds 1000
          $i++
        }
        Write-Progress -Id 1 -Activity 'Azure Active Directory is applying License. Please wait' -Status $Status -Completed
      }
      else {
        return
      }
    }
    catch {
      # Catching anything
      throw "Common Area Phone '$Name' - Creation failed: $($_.Exception.Message)"
    }
    #endregion

    $Status = 'Applying Settings'
    #region Licensing
    # Determining available Licenses from Tenant
    $Operation = 'Querying Tenant Licenses'
    $step++
    Write-Progress -Id 0 -Status $Status -CurrentOperation $Operation -Activity $MyInvocation.MyCommand -PercentComplete ($step / $sMax * 100)
    Write-Verbose -Message "$Status - $Operation"
    $TenantLicenses = Get-TeamsTenantLicense

    # Verifying License is available
    $Operation = 'Verifying License is available'
    $step++
    Write-Progress -Id 0 -Status $Status -CurrentOperation $Operation -Activity $MyInvocation.MyCommand -PercentComplete ($step / $sMax * 100)
    Write-Verbose -Message "$Status - $Operation"
    if ($License -eq 'CommonAreaPhone') {
      $RemainingCAPLicenses = ($TenantLicenses | Where-Object { $_.SkuPartNumber -eq 'MCOCAP' }).Remaining
      Write-Verbose -Message "$RemainingCAPLicenses Common Area Phone Licenses still available"
      if ($RemainingCAPLicenses -lt 1) {
        Write-Error -Message 'No free Common Area Phone Licenses remaining in the Tenant.' -ErrorAction Stop
      }
      else {
        try {
          if ($PSCmdlet.ShouldProcess("$UPN", "Set-TeamsUserLicense -Add $License")) {
            $null = (Set-TeamsUserLicense -Identity "$UPN" -Add $License -ErrorAction STOP)
            Write-Information -MessageData "INFO: '$Name' License assignment - '$License' SUCCESS"
          }
        }
        catch {
          Write-Error -Message "'$Name' License assignment failed for '$License'"
        }
      }
    }
    else {
      if ( $PSBoundParameters.ContainsKey('License')) {
        try {
          if ($PSCmdlet.ShouldProcess("$UPN", "Set-TeamsUserLicense -Add $License")) {
            $null = (Set-TeamsUserLicense -Identity "$UPN" -Add $License -ErrorAction STOP)
            Write-Information -MessageData "INFO: '$Name' License assignment - '$License' SUCCESS"
          }
        }
        catch {
          Write-Error -Message "'$Name' License assignment failed for '$License'"
        }
      }
      else {
        Write-Warning -Message "'$Name' no License applied. Policies cannot be assigned in one step. Please use Set-TeamsCommonAreaPhone or Grant the policies directly"
        $Licensed = $false
      }
    }
    #VALIDATE does this need to have a delay between license assignment and any future steps? If not, it might not even need a License!
    #TEST bug here pot. fixed by changing WHILE to DO/WHILE
    do {
      if ($i -gt $iMax) {
        Write-Error -Message "Could not find Successful Provisioning Status of the License '$ServicePlanName' in AzureAD in the last $iMax Seconds" -Category LimitsExceeded -RecommendedAction 'Please verify License has been applied correctly (Get-TeamsResourceAccount); Continue with Set-TeamsResourceAccount' -ErrorAction Stop
      }
      Write-Progress -Id 1 -Activity 'Azure Active Directory is applying License. Please wait' `
        -Status $Status -SecondsRemaining $($iMax - $i) -CurrentOperation $Operation -PercentComplete (($i * 100) / $iMax)

      Start-Sleep -Milliseconds 1000
      $i++

      #$TeamsUserLicenseNotYetAssigned = Test-TeamsUserLicense -Identity "$UserPrincipalName" -License $License
      $TeamsUserLicenseNotYetAssigned = Test-TeamsUserLicense -Identity "$UserPrincipalName" -ServicePlanName "TEAMS1"
    }
    while (-not $TeamsUserLicenseNotYetAssigned)
    #endregion

    #region Policies
    if ($Licensed) {
      $Operation = 'Applying Policies'
      $step++
      Write-Progress -Id 0 -Status $Status -CurrentOperation $Operation -Activity $MyInvocation.MyCommand -PercentComplete ($step / $sMax * 100)
      Write-Verbose -Message "$Status - $Operation"

      #IP Phone Policy
      if ($PSBoundParameters.ContainsKey('IPPhonePolicy')) {
        Grant-CsTeamsIPPhonePolicy -Identity $AzureAdUser.ObjectId -PolicyName $IPPhonePolicy
      }
      else {
        Write-Verbose -Message 'No IP Phone Policy supplied - Global Policy is in effect!'
      }
      #Teams Calling Policy
      if ($PSBoundParameters.ContainsKey('TeamsCallingPolicy')) {
        Grant-CsTeamsCallingPolicy -Identity $AzureAdUser.ObjectId -PolicyName $TeamsCallingPolicy
      }
      else {
        Write-Verbose -Message 'No Calling Policy supplied - Global Policy is in effect!'
      }
      #Teams Call Park Policy
      if ($PSBoundParameters.ContainsKey('TeamsCallParkPolicy')) {
        Grant-CsTeamsCallParkPolicy -Identity $AzureAdUser.ObjectId -PolicyName $TeamsCallParkPolicy
      }
      else {
        Write-Verbose -Message 'No Call Park Policy supplied - Global Policy is in effect!'
      }
    }

    #endregion

    #region OUTPUT
    $Status = 'Validation'
    $Operation = 'Querying Object'
    $step++
    Write-Progress -Id 0 -Status $Status -CurrentOperation $Operation -Activity $MyInvocation.MyCommand -PercentComplete ($step / $sMax * 100)
    Write-Verbose -Message "$Status - $Operation"

    $ObjectCreated = $null
    $ObjectCreated = Get-TeamsCommonAreaPhone -Identity "$UPN" -WarningAction SilentlyContinue
    if ($PSBoundParameters.ContainsKey('Password')) {
      Write-Verbose 'Password is encrypted and applied as per definition, provided it is adhering to the complexity requirements'
    }
    else {
      $ObjectCreated | Add-Member -MemberType NoteProperty -Name Password -Value $PasswordFormat
    }
    Write-Output $ObjectCreated

    Write-Progress -Id 0 -Status 'Complete' -Activity $MyInvocation.MyCommand -Completed
    #endregion

  } #process

  end {
    Write-Verbose -Message "[END ] $($MyInvocation.MyCommand)"
  } #end
} #New-TeamsCommonAreaPhone