A remote communication system comprising: - an image forming apparatus; - an electronic device located outside a network to which the image forming apparatus belongs; - a session relay system that relays a session between the image forming apparatus and the electronic device; and - a session management unit that manages the session, characterized in that: - the session relay system is configured to notify a first session ID and a second session ID to the session management unit, the first session ID and the second session ID being session IDs to identify communication by the session in the session relay system, - the session management unit is configured to execute a notification of the first session ID to the electronic device and a notification of the second session ID to the image forming apparatus, - the electronic device is configured to establish a connection with the session relay system, the connection using the first session ID, - the image forming apparatus is configured to establish a connection with the session relay system, the connection using the second session ID, - the session relay system is a remote communication system that is configured to relay the session by associating the connection established with the electronic device with the connection established with the image forming apparatus using the first session ID and the second session ID, - when a start of a test for a communication state via the session is requested by the electronic device, the session management unit is configured to request a first test ID as the first session ID and a second test ID as the second session ID from the session relay system, - when the session is relayed by the session relay system by associating the connection established between the electronic device and the session relay system with the connection established between the image forming apparatus and the session relay system using the first test ID and the second test ID, the image forming apparatus is configured to execute the test for the communication state with the electronic device via the relayed session, and - the electronic device is configured to notify an execution result of the test by displaying on a display of the electronic device. - an image forming apparatus; - an electronic device located outside a network to which the image forming apparatus belongs; - a session relay system that relays a session between the image forming apparatus and the electronic device; and - a session management unit that manages the session, - the session relay system is configured to notify a first session ID and a second session ID to the session management unit, the first session ID and the second session ID being session IDs to identify communication by the session in the session relay system, - the session management unit is configured to execute a notification of the first session ID to the electronic device and a notification of the second session ID to the image forming apparatus, - the electronic device is configured to establish a connection with the session relay system, the connection using the first session ID, - the image forming apparatus is configured to establish a connection with the session relay system, the connection using the second session ID, - the session relay system is a remote communication system that is configured to relay the session by associating the connection established with the electronic device with the connection established with the image forming apparatus using the first session ID and the second session ID, - when a start of a test for a communication state via the session is requested by the electronic device, the session management unit is configured to request a first test ID as the first session ID and a second test ID as the second session ID from the session relay system, - when the session is relayed by the session relay system by associating the connection established between the electronic device and the session relay system with the connection established between the image forming apparatus and the session relay system using the first test ID and the second test ID, the image forming apparatus is configured to execute the test for the communication state with the electronic device via the relayed session, and - the electronic device is configured to notify an execution result of the test by displaying on a display of the electronic device.