Terminal and communication data providing method of terminal and communication data outputting method of terminal, communication text display service system

PURPOSE: A terminal device and a method of providing conversation data of the terminal device, a method of conversation data output of the terminal device are provided, which can show a conversation content by the naked eye through the display. CONSTITUTION: A character display service server(500) analyzes a voice signal between a terminal device(300) and the other terminal device(400). The character display service server extracts best suited variable parameter corresponding to the voice signal. The character display service server changes the voice signal into a character data, based on the variable parameter corresponding to the terminal device. The character display service server provides a video signal, a voice signal, and text data to the terminal device.