Elevator system comprising: an elevator controller; an elevator car, which can be moved, in a manner controlled by the elevator controller, between floors (L1, L2), wherein a car call device, which is communicatively connected to the elevator controller and is intended for inputting a destination floor, is arranged in the elevator car; elevator operating devices, which are communicatively connected to the elevator controller and are arranged on the floors (L1, L2) for inputting an elevator call, wherein an elevator operating device has a communication device for communication with the elevator controller, a central control and processing device, and a touch-sensitive screen system which is equipped with a substantially smooth contact surface and is designed to respond with tactilely perceptible feedback to the contact surface being touched by a passenger, wherein the central control and processing device is communicatively connected to the communication device and the screen system, wherein the elevator controller is configured, in a normal operation mode of the elevator system, to actuate an elevator operating device by means of a first control signal such that the screen system displays at least one call symbol (23, 24, 26) on a user interface, wherein the elevator controller is configured, in an emergency operation mode of the elevator system, to actuate an elevator operation device by means of a second control signal such that the screen system displays an emergency operation message on the user interface, wherein the central control and processing device is configured, in the normal operation mode, when actuated by the elevator controller, to actuate the screen system by means of the first control signal such that the user interface displays the at least one call symbol (23, 24, 26), and in the emergency operation mode, when actuated by the elevator controller, to actuate the screen system by means of a second control signal such that the screen system displays the emergency operation message on the user interface. an elevator controller; an elevator car, which can be moved, in a manner controlled by the elevator controller, between floors (L1, L2), wherein a car call device, which is communicatively connected to the elevator controller and is intended for inputting a destination floor, is arranged in the elevator car; elevator operating devices, which are communicatively connected to the elevator controller and are arranged on the floors (L1, L2) for inputting an elevator call, wherein an elevator operating device has a communication device for communication with the elevator controller, a central control and processing device, and a touch-sensitive screen system which is equipped with a substantially smooth contact surface and is designed to respond with tactilely perceptible feedback to the contact surface being touched by a passenger, wherein the central control and processing device is communicatively connected to the communication device and the screen system, wherein the elevator controller is configured, in a normal operation mode of the elevator system, to actuate an elevator operating device by means of a first control signal such that the screen system displays at least one call symbol (23, 24, 26) on a user interface, wherein the elevator controller is configured, in an emergency operation mode of the elevator system, to actuate an elevator operation device by means of a second control signal such that the screen system displays an emergency operation message on the user interface, wherein the central control and processing device is configured, in the normal operation mode, when actuated by the elevator controller, to actuate the screen system by means of the first control signal such that the user interface displays the at least one call symbol (23, 24, 26), and in the emergency operation mode, when actuated by the elevator controller, to actuate the screen system by means of a second control signal such that the screen system displays the emergency operation message on the user interface.