[Kazun]

$Login = Get-ADuser $Name | Set-ADUser -EmailAddress $Email -MobilePhone $Phone -Company $Organization -Title $JobTitle -PassThru | Move-ADObject -TargetPath $path

заменить на:

Код:

$User = Get-ADuser $Name 

if($User) {
	if($ipphone) {
		Set-ADUser $User -Replace @{"ipphone" = $ipphone}
	}
	
	Set-ADUser $User -EmailAddress $Email -MobilePhone $Phone -Company $Organization -Title $JobTitle -PassThru | Move-ADObject -TargetPath $path
}