Most telephone psychic clients are repeat customers, who rely on their telephone psychic to provide accurate and timely advice that is pertinent to their lives. It is all done over the phone. Phones provide an instant connection between callers and psychics. As a supernatural advisor, it is imperative to build trust and credibility with your clients by using a calming and interested voice and by being able to solve problems and answer questions without ever seeing the person on the other end of the line.
In 1880 the American stage mentalist Washington Irving Bishop published a book revealing how mediums would use secret codes as the trick for their clairvoyant readings. The Seybert Commission was a group of faculty at the University of Pennsylvania who in 1884–1887 exposed fraudulent mediums such as Pierre L. O. A. Keeler and Henry Slade. The Fox sisters confessed to fraud in 1888. Margaret Fox revealed that she and her sister had produced the "spirit" rappings by cracking their toe joints.