Traditionally, when a student misses a class period during the day, their parent is notified with a robocall in the morning or afternoon which instructs them to call the school attendance secretary and explain why the student is missing. At large high schools, there are many days where these secretaries cannot answer all of the voicemails and as a result, there are thousands of records with missing data. Without knowing why students are missing it's hard for district leadership to create strategies to encourage attendance.