This apps allows you to make phone calls from your cell phone with your business phone callerid. It works with Callture business phone service. With this service, phone calls to your businss number can be forwarded to your cell phone. And with this app, you can callback with your business number. You will see missed calls and business contacts within the app, so you can callback with one click. This allows you to have a separate business phone line to work on your cell phone.