A predictive dialer is an automated dialing system that empowers call centers to spend 55 minutes of each hour talking to live prospects. Telemarketers no longer waste time dialing numbers or listening to ringing - all they do is talk to prospects. Predictive dialers have more telephone lines than telemarketers. These extra telephone lines initiate phone calls while telemarketers are talking to prospects. A complex mathematical formula is used to "predict" when a telemarketer will become available so that telemarketers flow seamlessly from good-bye to hello. It is common to have productivity increases of 200-300% when the transition has been made to a predictive dialer.