Public announcements are being made, calling players to available seats from several locations through the room.
A bed that I will say one of the most relevant example is Stud, it is considered as a more pure poker variation, as many for its historic past and difficulty in play. https://tingamegenz.com/giai-tri/cong-game-rikvip-san-choi-dang-de-trai-nghiem/23530