Patent ID: 7715872

Claim:
A video calling method for providing video through a separate display unit, the method comprising the steps of: connecting a video calling service providing video communication and voice/audio communication between a first mobile communication terminal and a second mobile communication terminal; receiving, at the first mobile communication terminal, a request to change a device for transmitting/receiving a video associated with the video calling service to/from the second mobile communication terminal to the separate display unit while continuing to retain a voice/audio channel connected between the first mobile communication terminal and the second mobile communication terminal; transferring, by the first mobile communication terminal, information about the separate display unit to the second mobile communication terminal, and controlling the second mobile communication terminal to transmit/receive the video to/from the separate display unit; and transferring, by the first mobile communication terminal, information about the second mobile communication terminal to the separate display unit, and controlling the separate display unit to transmit/receive the video to/from the second mobile communication terminal, wherein the second mobile communication terminal provides voice/audio communication for a user of the second mobile communication terminal with the first mobile communication terminal, and the separate display unit provides the video communication between the user of the second communication terminal and the first communication terminal, wherein the user of the second communication terminal communicates via voice/audio with the first communication terminal using the second communication terminal while substituting the separate display for video communication associated with the voice/audio communication instead of using the second communication terminal for said video communication associated with the voice/audio communication.