In this case, a short "there shouldn't be a voicemail on there" would definitely have helped us without explicitly pointing in the correct direction. However, I really liked that there weren't staff in the room with us. I think it would have lessened the immersion and experience if while we were working out the problem, there was someone sitting in the corner who knew the answer and was holding a stopwatch. But then ideally they would have an audio feed from within the room, instead of just video.