The document discusses business process outsourcing (BPO) and call centers. It defines BPO as examining a business's processes and outsourcing some functions, like front office customer service, back office accounting, and data entry. A call center handles high-volume inbound and outbound phone calls for services like customer support, sales, and marketing. Inbound calls are customer-initiated for help, while outbound calls are representative-initiated for selling. Call centers provide a cost-effective way to centralize marketing activities and improve customer service.