Communication terminal apparatus, connection control method for the apparatus and program for the method

In the case of connecting a line for making connection between communication unit mounted in a vehicle-mounted terminal and center communication unit of an information center and acquiring information accumulated in storage unit of the information center control unit of the vehicle-mounted terminal predicts the necessity for connection between the communication unit and the information center and when it is decided that there is a possibility of the connection and there is the necessity, start processing of line connection to the information center is previously started and information can be immediately sent via a line in which the connection is completed at a point in time of actually sending information from the side of the vehicle-mounted terminal to the side of the information center