METHOD AND AN APPARATUS OF PROVIDING A VIDEO CALL SERVICE TO A VIDEO TERMINAL DURING A CALL BETWEEN A VIDEO TERMINAL AND A VOICE TERMINAL, CAPABLE OF PROVIDING A VIDEO CALL SERVICE EVEN IN A CALL WITH A VOICE CALL SERVICE SUBSCRIBER

摘要

PURPOSE: A method and an apparatus of providing a video call service to a video terminal during a call between a video terminal and a voice terminal are provided to combine voice data received from a voice terminal with video data to generate video call data and supply the generated video call data to the video terminal.;CONSTITUTION: A video communication call setup request signal is received from an originating video terminal(S401). A voice communication call setup request signal is transmitted to a receiving voice terminal(S403). A voice communication call setup response signal is received from the receiving voice terminal(S407). A voice communication call is set up with the receiving voice terminal after setting up a video communication call with the originating video terminal(S409). Voice data are received from the receiving voice terminal through the set voice communication call. Video call data are generated by combining the received voice data with preset video data(S411).;COPYRIGHT KIPO 2010