roll call

  1. the reading aloud of a roll, or list of names, as to check attendance in a classroom, military formation, etc.
  2. the fixed time, or a signal (as on a bugle), for such a reading

See roll call in American Heritage Dictionary 4

noun
  1. The reading aloud of a list of names of people, as in a classroom or military post, to determine who is present or absent.
  2. The time fixed for such a reading.
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