Telephone and device intended to be adapted to said telephone when operating in restricted mode

摘要

The invention relates to a telephone comprising a keyboard which has keys to which various functions are assigned. According to the invention, the operation of certain keys is admitting of being blocked, and the function assigned to the non-blocked keys is admitting of being modified. PPA device is admitting of being adapted to said telephone to mask the blocked keys to the user. Advantageously, this device is a housing of a shock-resistant material.PP Applications: The invention permits of modifying and simplifying the man- machine interface of a telephone.PPReference: FIG. 1.