Video/voice communication system and call transfer/pick-up method using thereof

Used by video / audio communication system and transfer / call pick-up method using the same IP-based, the user and optionally TV, an image, such as a PDA, or a home pad phone through a terminal capable of switching between audio / video call according to the invention or geographical distance call is one to perform a video call to the desired terminal, regardless of time and place by making it possible to perform a video call with the desired device to pick up an incoming call to the peripheral device when it is in a difficult position will be.