Embedded system capable of integrating interactive white board and video session as well as calling method

The invention provides an embedded system capable of integrating an interactive white board and a video session as well as a calling method. A terminal capable of integrating a touch screen, a microphone and a display screen is integrated, and the interactive white board is integrated, so that the video session is directly called through the integrated terminal, configuration of assistant equipment is not needed, connection of all kinds of cables is not needed, and a remote audience feels personally on the scene under the assistance of the interactive white board.