The position and orientation at a time of shooting by a shooting unit of a portable terminal is transmitted to an information processing apparatus. Based on the transmitted position and orientation of the portable terminal and the stored position of an image processing apparatus, the information processing apparatus extracts an image processing apparatus from the shot image and transmits information about the extracted image processing apparatus to the portable terminal. The portable terminal combines the shot image with an option for selecting a function available in the image processing apparatus and displays the combined image on a display unit, based on the information transmitted from the information processing apparatus. When selection of a function is accepted, a screen for operating the selected function is displayed on the display unit of the portable terminal.