| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an IC (integrated circuit) card attached to a cellular phone capable of using the installed application 65 in the appropriate state meeting the communication situation, and to provide an application control method of the cellular phone system or the IC card. <P>SOLUTION: When the IC card 10 with the application 65 installed is being attached to the cellular phone 11, it conducts mobile communication with the mobile communication systems 1A, 1B provided by operators A, B through the cellular phone 11, stores roaming information of communication with the mobile communication systems 1A, 1B in a roaming information database 63 to determine if the application 65 is in effective or not on the basis of the roaming information stored in the roaming information database 63, and activates or deactivates the application 65 when determining that the application 65 is effective. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
