Abstract: A telephone transaction support system includes a customer information registration unit for registering information regarding a customer in a database, the information being obtained in a conversation with the customer over a telephone, a feature analyzing unit for analyzing a feature of a voice corresponding to a predetermined word obtained in the conversation with the customer over the telephone, and a password information registration unit for registering information-obtained by the feature analyzing unit as password information in the database, the password information corresponding to the customer in the database. The information regarding the customer for which a transaction over the telephone should be allowed and the password information for the customer can be registered over the telephone.

Abstract: A voice characteristics analyzer analyzes the voices of unspecified persons through conventional Karaoke systems. A voice characteristics extraction device extracts spoken voice characteristics when a user speaks specific words. A voice characteristic classification table pre-stores analysis information derived from non-user voices and corresponding to voice characteristics of these specific words. An analysis information output device outputs results of the characteristics analysis that compares current user data with the pre-stored information.