It is a telephone call center. In other words, a is a centralized service that manages and manages the traffic of incoming and outgoing calls of a specific client.
This service is offered through a single channel: a telephone network. But a Call Center does not only work with many telephones, these telephone networks are operated with a work team made up of multiple agents who receive calls one after another. Depending on the size of the company you support, agent teams can be very large or small.
The function of a Call Center, in general, is to provide technical support and attention to the doubts, complaints or demands that they receive from customers through incoming calls. While outgoing calls are usually made to sell products or services, carry out post-sale follow-up surveys and customer loyalty, etc.