Call Center is a term that refers to a wide variety of services including reservations centers, help desks, information lines or customer service centers. Call Center usually refers to a sophisticated voice operations system that provides a full range of high-volume inbound or outbound call-handling services including customer support, operator services, directory assistance, multilingual customer support, credit services, card services, inbound and outbound telemarketing, interactive voice response and web-based services. The Call Center Services on this page are some of the industry leaders.