Abstract: The present invention relates to a radiocommunication system composed of mobile phones and wireless LANs, and to a wireless terminal device. More particularly, the present invention provides a system making it possible to grasp in real time the condition of a signal received from a remote terminal device during communication, and provides a terminal device. A radiocommunication system includes a first wireless terminal device and a second wireless terminal device. During communication between the first and second wireless terminal devices, the first wireless terminal device transmits the terminal condition data of the own terminal device to the second wireless terminal device. The second wireless terminal device produces a predetermined notification on the basis of the terminal condition data received from the first wireless terminal device, and delivers the notification to the second wireless terminal device user.

Abstract: The invention relates to data backup of a terminal device and attempts to facilitate data backup by utilizing the existing communication capabilities of backup data storage equipment and the terminal device. Arrangement is such that the terminal device comprises a communication unit connecting to electronic equipment having data storage and communication capabilities by use of the communication unit, and a data processing unit causing the communication unit to transmit data to be stored to the electronic equipment, thereby allowing the electronic equipment to store the data.