Move all numbers from “Other Phone” to “Mobile Phone” field

Use Powershell to run this script

$outlook = new-object -com outlook.application
$contacts = $outlook.Session.GetDefaultFolder(10)
$contacts.Items | % { if($_.MobileTelephoneNumber -eq "") { $_.MobileTelephoneNumber = $_.OtherTelephoneNumber; $_.OtherTelephoneNumber = ""; $_.save() } }