Abstract: There is provided a mobile radio communication apparatus being able to transmit data and voice, connected with one of base stations over a radio communication channel, the apparatus comprising a plurality of mobile identification numbers (MINs), an interface being able to connected with an external device inputting data from the external device and outputting data to the external device, data communication request detecting means for detecting a data communication request from the external device through the interface, and connection control means for controlling the connection with the base station by using a first MIN of the plurality of MINs responsive to output of the detecting means. In the mobile radio communication apparatus having the above constitutions, the data communication request detecting means detects a data communication request from the external device.

Abstract: There is provided a mobile radio communication apparatus being able to transmit data and voice, connected with one of base stations over a radio communication channel, the apparatus comprising a plurality of mobile identification numbers (MINs), an interface being able to connected with an external device inputting data from the external device and outputting data to the external device, data communication request detecting means for detecting a data communication request from the external device through the interface, and connection control means for controlling the connection with the base station by using a first MIN of the plurality of MINs responsive to output of the detecting means.

Abstract: When at a starting time of an apparatus with a power supply turned ON a designation operation of a communication mode is carried out or one communication operation is finished, a base station search control section (21) in a control circuit (20) conducts a search on control channels received from respective base station, selects from among those base stations whose control channels are received at an electric field strength greater than a predetermined level a base station possessing a desired communication mode and having the greatest electric field strength, and acquires and sets this base station, thus effecting a transfer to a standby state.