When you want to avoid phone taps on your line, one of the things you need to do is get a bug sweeper. These devices can help you find phone taps in your home that may be allowing others to get information that you do not want them to have. Regular bug sweeping with devices that you can easily find and buy over the Internet are key to ensuring that your confidential phone conversations remain confidential.
It is important to note, however, that there are other ways to avoid phone taps. Most telecommunications companies have had to make it easier for law enforcement to tap phones since 1994 and the passing of the law known as CALEA. Getting VoIP service over the Internet will protect you to a certain extent for the time being, although a recent FCC ruling demands that VoIP provides start building in easier third party access.