A call input device of an elevator includes a keyboard for inputting the number of a floor and a keyboard control for the keyboard. The keyboard control is configured to open an input channel from the keyboard for the input of a further digit of a floor number to enter a more than one-digit floor number. The call input device includes a proximity sensor having a sensing area in front of the keyboard. The keyboard control is configured to open/close the input channel from the keyboard for the input of a further digit in response to the signal of the proximity sensor.