A sound data providing system capable of improving the freedom of creation of sound data provided from a sending terminal to a receiving terminal, a method thereof, an exchange, and a program. A sending terminal transmits to a user interface information concerning the data of sound such as voice and digital sound, destination information and date information. The user interface converts the information received from the sending terminal to a format acceptable to an exchange to transmit the converted information to the exchange. The exchange provides a receiving terminal with the sound data at the specified date.