Re-dial campaign contacts who don't answer

Voice campaigns have a "Re-dial the contact if they don't answer" switch in Advanced Settings. Set how many minutes to wait before calling again (0 re-dials right away, up to 7 days) and, if you like, a maximum of 1 to 3 re-dials. When a call goes unanswered, the campaign schedules another call to the same contact, within its max attempts and calling schedule.