A communication control device executes a call-out process of calling out a recipient telephone device while specifying an importance level via a telephone network in response to a request from a transmitter telephone device. A recipient received a call operates a mobile communication terminal after a telephone call ends, accesses an information providing server via a wireless LAN access point and the Internet, and inputs information evaluating whether or not an importance level specified for the received call is appropriate. The information providing server provides the input evaluation information to a storage device. The communication control device determines whether or not to execute a call-out process based on the evaluation information stored in the storage device when there is a call-out request from a transmitter.