A network facsimile system has a communication terminal and relaying server. The network facsimile system is configured such that the communication terminal can transmit an image, through the relaying server, to a destination terminal outside the network facsimile system, that the communication terminal transmits an image to the relaying server in accordance with a predetermined communication protocol. The relaying server transmits an image to the destination terminal in accordance with a facsimile communication protocol. The communication terminal includes a notification system that notifies a user of the communication terminal of an operation status information indicating an operation status of the network facsimile system during a relaying server side operation period.