Final answer:
An Automatic Call Distributor (ACD) is a system that directs incoming calls to available agents in a call center, improving efficiency and customer service.
Step-by-step explanation:
A Automatic Call Distributor (ACD) is technology that routes incoming calls to the next available agent based on number called, time of day, or caller-selected codes. It is a telephony system used in call centers to manage large volumes of calls. The ACD system assesses incoming calls and assigns them to the agent that is most capable of meeting the callers' needs, improving efficiency and customer satisfaction.