Abstract: When operating as a transmitter, a cellular phone 1 stops transmission of image data even during execution of a video phone communication in the case where a difference (movement) Dv between the image data of two frame images that are continuous in time series is smaller than a predetermined value (specific value Th). On the other hand, when operating as a receiver, the cellular phone 1 displays a still picture by using the image data that has been finally received until receiving the new image data.

Abstract: A mobile terminal, communication system for the same, and a method for reconnecting the mobile terminal by transmitting a telephone number determined by a user of the mobile terminal through to a second terminal, the telephone number being defined as a number to which the second terminal is to be reconnected in a situation where it becomes impossible for the second terminal to communicate with the first mobile terminal, when a line between the mobile terminal and a radio base station to which the mobile terminal is connected is abruptly interrupted and the line does not return to a normal state.

Abstract: A mobile communication system includes a mobile terminal serving as a mobile terminal equipment. The mobile terminal has a pager electric field level monitor section, a PHS field level monitor section and a controller. The pager field level monitor section is for judging whether a pager receiver is within a service area of a pager base station or not. The PHS field level monitor section is for judging whether a PHS receiver is within a service area of a PHS base station or not. The controller is to control pager calling or PHS callings by the pager base station or the PHS base station according to the monitored results by the PHS field level monitor section and the pager field level monitor section. Owing to such arrangements, it is possible to improve the reception performance and the communication reliability of the mobile terminal as a pager, and thus construct an economical mobile communication system even in places like premises and underground passages.