Patent ID: 7058391

Claim:
A cellular telephone set being set and released of various functions when an input identification number is judged as a correct identification number including a dial lock for disabling key input, comprising: holding means for holding a preliminarily set dial lock releasing number dedicated for releasing dial lock and at least a second number which releases one or more pre-programmed permitted functions wherein said at least a second number is different from said preliminarily set dial lock releasing number; judgment means for making judgment whether the input identification number input in dial lock condition is said dial lock releasing number held in said holding means and for making judgment whether the input identification number is said at least a second number held in said holding means; and means for releasing dial lock condition when said judgment means makes judgment that said input identification number is said dial lock releasing number for releasing said one or more pre-programmed permitted functions when said judgment means makes judgment that said input identification number is said at least a second number.