Telephone scatologia is a type of paraphilia categorized as 'Other specified paraphilic disorder' in DSM-5. Obscene and sexual phone calls, sexually arousing fantasies, sexual urges or behaviors are present at least for six months in telephone scatologia. However, there is limited information about telephone scatologia. The causes of telephone scatologia, prevalence, risk factor, the relationship between mental disorders and treatment are not fully known. A 26 year-old man who had complaints of telephone scatologia is presented in this case report. Taking notice of items about diagnosing and treating in this kind of patients are discussed in this article.