When data received separately in first and second reception processing is processed separately by first and second application programs, and when data received by the first reception processing contains specific data specifying processing by the second application program, and the specific data has regional properties, the current region where the second application program is executed is judged, and if the region does not match a region to which processing specified by the specific data belongs, the content specified by the specific data is converted based on data in a predetermined table, and processing is executed by the second application program. Accordingly, two application programs can be linked in a mobile phone unit or other terminal devices, and problems when executing one application with regional properties under control of the other application can be resolved.