According to exemplary embodiments of the present disclosure, a monitoring device can be provided that facilitates a supervisor in a contact center to recognize the status of each operator easily, and to recognize an irregularity in operation quickly. For example, a server can be connected to a telephone switchboard and a terminal which can include a display unit that, via a communication line; can receive operational status data indicating an operating status of a telephone from the telephone switchboard, measure an elapsed time after a change in the operational status, read out the configuration data associated and stored beforehand according to the received operational status data, generate display data for displaying an image indicating the operational status and the elapsed time, at a prescribed position on the display unit corresponding to a seating position of the operator, based on the configuration data and the elapsed time, and transmit the data to the terminal.