A campaign defines who to call, when, and what happens when each call is answered: the phone system and extension used to make the calls, the dialer mode, the working times, the retry policy, and the call flow or AI agent that handles each call.
Campaigns are created in Draft state, so you can add their numbers and review their settings before activating them. Once activated, a campaign can be paused, resumed and canceled, and it finishes automatically when its end date is reached, or when all the numbers of a static campaign were processed.
See Campaigns in the user guide for a detailed explanation of every setting.