Call centers were invented at the beginning of the 1970s in America, and have developed into an approved method of direct marketing. Since the 1990s, they have become accepted in Europe, and especially outbound call centers for telemarketing are essential to acquire new customers. Colligo S.r.l. with headquarters in Turin is the leading outbound call center in Italy, offering a comprehensive range of services, broad experience and flexibility thanks to its five locations throughout Europe and North Africa.