A call / contact center is a centralized office used for the receiving and transmitting a  large volume of request by telephone. Modern telecommunication technology enables different kinds of business  meet a variety objectives. Call center solutions is based on advanced connectivity combined with intelligent, skills-based  service.

Technology in this branch is subject to improvements and innovations. Every day are tested new ideas and technical innovations designed to this areas. At present day, we can list few different models of call center:

• Inbound call centre – is a call center where one telephone agents field only incoming phone calls for a company. Workers of this kind of call center often provide customer service or technical assistance to callers.
• Outbound call centre - One in which call centre agents make outgoing calls to customers or sales leads. Workers of this type of call center typically are selling products and services.
• Mixed call centre - Combining automatic call distribution for incoming calls with predictive dialling for outbound calls.

Call / contact  center have been popular as a outsourcing services. Big advantage of call center outsourcing is money saving and possibility to focus on core company tasks.