Patent ID: 7126713

Claim:
A communication terminal apparatus comprising: a first memory that stores parameters for each of a plurality of geographical divisions and at least one operation-control program; a second memory; an input device that allows an operator to select a geographical division; and a control device that customizes the second memory on the basis of parameters for a selected geographical division selected by the operator, the parameters for the selected geographical division being read from the first memory, wherein: the parameters for each of the plurality of geographical divisions include at least one geographical division-specific parameter and at least one non-geographical division-specific parameter for each of the plurality of geographical divisions, if no geographical division-specific parameter has been stored in the second memory, the control device reads at least one geographical division-specific parameter regarding the selected geographical division and at least one non-geographical division-specific parameter regarding the selected geographical division, from the first memory, and stores the at least one geographical division-specific parameter and the at least one non-geographical division-specific parameter into the second memory, and if at least one geographical division-specific parameter regarding a first geographical division has already been stored in the second memory and a second geographical division is selected, the control device only reads at least one geographical division-specific parameter regarding the selected second geographical division from the first memory, and stores the at least one geographical division-specific parameter into the second memory.