A call center is a centralized location where incoming and outgoing telephone calls are managed, received, and answered by trained customer service representatives. Call centers may also include other forms of communication such as email or chat support. The primary function of a call center is to provide assistance to customers, often in relation to a company's products or services, but they can also handle tasks such as telemarketing, appointment setting, and customer satisfaction surveys. Call centers are commonly used by businesses to improve their efficiency and effectiveness in handling customer queries and concerns.