VOIP TELEPHONE CALL DEVICE USING DIGITAL TELEVISION SET
PURPOSE: A VoIP telephone call device using a digital television set is provided to integratedly comprise a VoIP function on a digital television set, and to perform a video phone call and a voice phone call, so that a user watches the digital television set or control operations of plural home appl...
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Format: | Patent |
Sprache: | eng ; kor |
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