A large demand for predictive dialing services has come up over the last couple of years as technology has made it more cost effective for contact centers to expand their workforce both in numbers and geographically.  Predictive dialing services are typically used by telemarketing organizations and political campaigns.  Because of the unique nature of these types of services including low answer percentages and low average call durations, the wholesale terms and conditions are different from normal termination services.  The biggest differences are the elimination of low call duration penalties and restrictions on the number of calls per second allowed.
Dialer services are most popular for calling into the United States, Canada, United Kingdom, Australia and China.  GWT can provide you with the resources and information on the top dialer providers in the world and what to look for in your partner.