Achieve the effects of secrecy and become difficult to trace. Install telephone scrambling equipment in your phone. This will prevent anyone from eavesdropping on your conversations. It will not change the circuit of your normal telephone.

When telephone scrambling equipment is put into the telephone, all functions of a normal telephone will still be there. If you are still wary of third parties being able to connect to your line, you may also want to use a telephone analyzer that instantly alerts you if there is a wiretap on your telephone line or if eavesdropping is happening while you are talking on the phone.