A management apparatus is configured to, when a connection request specifying, as a communication partner, a communication apparatus or an information processing apparatus has been received from a partner apparatus, transmit a connection request to a communication apparatus. The communication apparatus is configured to transmit a reception notification message to the management apparatus, when the connection request has been received. The management apparatus is configured to, when the reception notification message has been received from the communication apparatus, identify the information processing apparatus that is in cooperation with the communication apparatus that is a transmission source of the received reception notification message, and transmit the reception notification message to the identified information processing apparatus. The information processing apparatus is configured to receive an approval operation for approval of reception or a denial operation for denial of reception, when the reception notification message has been received.