Predictive dialer. Callers dial into Impact Dialing, which then calls out to a list of phone numbers. By monitoring how many voters actually pick up, Impact Dialing dials multiple lines to ensure that someone will answer almost every call. Additionally, Impact Dialing tracks the length of each conversation, so they can deliver a new call shortly after you hang up the previous one. All you have to do is upload a list of phone numbers on the website. Political campaigns can even use platform phones only, with no computers.