I study RealTime Online, but in the schedule I see that number of room, should I come to classes?

If the class schedule says "conference" or "broadcast", we do not come to the university. Of course, we invite everyone to the face-to-face lecture, but there is no such obligation. In the schedule of such classes, the name of the office appears, because the Lecturer must conduct classes from somewhere. If classes are held from the university, then the number of the room appears.