Interfacing between independent voice mail system and exchange
 An interfacing apparatus, which allows communication between an exchange and an independent voice mail system using a serial transmission interface device includes: a switching unit for performing a switching function for the formation of a communication path between a subscriber of the exchange and an independent voice mail system; a serial transmission interface connected to the switching unit for serially transmitting an input call message and for performing interfacing operations; an independent voice mail system connected to the serial transmission interface for rendering service of various voice guiding messages based on the call message, and a central processing unit for controlling the switching unit and serial transmission interface and for controlling the transmission of a call message to the independent voice mail system via the serial transmission interface when the call message is received in the independent voice mail system. 
SamSung Electronics Co., Ltd.
H
H04M
inventional
Hyung-Woon
Choi