Building communication system having at least one door station and at least one apartment station (8, 16), with these stations (1, 8, 16) being connected to one another via a bus and with each station (1, 8, 16) having a processing/control unit (2, 9, 17), with the door station having at least one bell button (5, 6) for production of a bell signal, and with a doorbell/tone generator (14, 22) being controllable by means of the processing/control unit (9, 17) of an apartment station (8, 16) when a bell signal is received, wherein • a memory (10, 18) and a timer (11, 19) are connected to the processing/control unit (9, 17) of the at least one apartment station (8, 16), • different operating modes can be predetermined in a controlled manner by means of the timer (11, 19) by means of time details and/or data relating to the current day of the week, and can be implemented via the processing/control unit (9, 17), with these different operating modes defining when a received bell signal should be passed on to the doorbell/tone generator (14, 22) and when it should not, • at least one door station information item, which can be notified at the door station, can be stored by means of the memory (10, 18), and, • when a bell signal is received during the appearance of an operating mode with a bell signal which should not be passed on, the processing/control unit (9, 17) of the apartment station passes on a stored door station information item to the door station by means of a door station information signal, characterized in that • the door station information is in video form, and the door station information signal is applied appropriately to a display at the door station, wherein • the apartment station (8, 16) has control/input elements (13, 21) for inputting the door station information in video form, and • the different operating modes are input/programmed with the aid of the control/input elements (13, 21) and the processing/control unit (9, 17) • the apartment station (8, 16) has an activation key for direct control of the processing/control unit (9, 17), bypassing the timer (11, 19). • a memory (10, 18) and a timer (11, 19) are connected to the processing/control unit (9, 17) of the at least one apartment station (8, 16), • different operating modes can be predetermined in a controlled manner by means of the timer (11, 19) by means of time details and/or data relating to the current day of the week, and can be implemented via the processing/control unit (9, 17), with these different operating modes defining when a received bell signal should be passed on to the doorbell/tone generator (14, 22) and when it should not, • at least one door station information item, which can be notified at the door station, can be stored by means of the memory (10, 18), and, • when a bell signal is received during the appearance of an operating mode with a bell signal which should not be passed on, the processing/control unit (9, 17) of the apartment station passes on a stored door station information item to the door station by means of a door station information signal, • the door station information is in video form, and the door station information signal is applied appropriately to a display at the door station, wherein • the apartment station (8, 16) has control/input elements (13, 21) for inputting the door station information in video form, and • the different operating modes are input/programmed with the aid of the control/input elements (13, 21) and the processing/control unit (9, 17) • the apartment station (8, 16) has an activation key for direct control of the processing/control unit (9, 17), bypassing the timer (11, 19).