This invention discloses a
cell phone ciphering method, namely, the end-to-end ciphering method for
GSM network phone and data. When said
mobile station makes phone / data communication with fixed wire phone net users, the
wireless users adopt outboard terminal security devices and blue tooth
mobile station to realize
wireless connection. The wire users adopt
digital security telephones with phone and data ciphered functions, outboard terminal security device is connected with
GSM mobile station supporting blue tooth data communication function by the blue tooth technology to realize end-to-end ciphering of
GSM network phone and data service.