Method for preventing personal handy-phone system handset from being reassigned with new phone number

摘要

The present invention discloses a method of preventing a PHS handset from being reassigned to a new phone number by installing an encryption program in a PHS handset. The encryption comprises an encryption algorithm, and such encryption algorithm can compute a coded password from a specific code, such that after the phone number is coded into the PHS handset for the first time, a user needs to run such encryption program if it is necessary to reassign a new phone number to the PHS handset. Therefore, the user needs to enter a correct password before the PHS handset can be recoded, and thus can avoid the PHS handset from being recoded without authorization.