Abstract: A method for controlling a one-touch call mode of a mobile terminal, in which a user can select the call quality of a voice call in consideration of a calling rate. The user interface of the mobile terminal for the selection occupies only a minimum area, providing a small, efficient user interface. The method includes steps of: displaying, on one section of a touch screen, a one-touch call mode switching menu for switching between voice mode and data communication mode when the user makes a selection; and displaying, adjacent to the switching menu on the touch screen, rate per hour information predetermined according to a region for the voice mode or the data communication mode, as selected by the user. The rate per hour information is displayed as calculated with reference to the mode and the selected region, whenever the voice mode and the data communication mode are switched.

Abstract: Disclosed is a method for controlling voice emoticons in a portable terminal for providing a recipient portable terminal with various voice files according to the emotions and feelings of the user in place of text-based emoticons, thereby enabling the various voice files to be played and to express rich emotions compared to the existing monotonous and dry TTS-based voice files. The present invention comprises the steps of: displaying a voice emoticon call menu for calling a voice emoticon menu on one area of a touch screen; displaying the voice emoticon menu provided with a voice emoticon list after the voice emoticon call menu is user-selected; and transmitting a voice emoticon user-selected from the voice emoticon list to a recipient portable terminal in place of the voice of the user.

Abstract: Disclosed is a communication system and, more particularly, a communication system using heterogeneous networks to support voice calls by combining private mobile networks, Mobile Network Operators (MNOs), and Public Switched Telephone Networks (PSTNs) even when an application for voice talk has not been installed on the mobile terminal.

Abstract: A method for controlling a one-touch call mode of a mobile terminal, in which a user can select the call quality of a voice call in consideration of a calling rate. The user interface of the mobile terminal for the selection occupies only a minimum area, providing a small, efficient user interface. The method includes steps of: displaying, on one section of a touch screen, a one-touch call mode switching menu for switching between voice mode and data communication mode when the user makes a selection; and displaying, adjacent to the switching menu on the touch screen, rate per hour information predetermined according to a region for the voice mode or the data communication mode, as selected by the user. The rate per hour information is displayed as calculated with reference to the mode and the selected region, whenever the voice mode and the data communication mode are switched.

Abstract: A generated voice talk file is transmitted when a touchscreen of a sender mobile terminal is touched off to a receiver mobile terminal and the receiver mobile terminal performs the voice talk by reproducing the voice talk file, so that voice call quality is improved and the ‘No signal’ phenomenon, delayed connection, and noise caused by the network state may be minimized. A voice input area occupying the majority of the touchscreen decides a generating and ending time of the voice talk file. The method displays a voice input area on a touchscreen; generates a voice talk file corresponding to a voice signal of a user when the voice input area is touched on; and stops generation of the voice talk file and transmits the voice talk file to a user preset phone number of a receiver mobile terminal when the voice input area is touched off.

Abstract: Disclosed is a method for controlling voice emoticons in a portable terminal for providing a recipient portable terminal with various voice files according to the emotions and feelings of the user in place of text-based emoticons, thereby enabling the various voice files to be played and to express rich emotions compared to the existing monotonous and dry TTS-based voice files. The present invention comprises the steps of: displaying a voice emoticon call menu for calling a voice emoticon menu on one area of a touch screen; displaying the voice emoticon menu provided with a voice emoticon list after the voice emoticon call menu is user-selected; and transmitting a voice emoticon user-selected from the voice emoticon list to a recipient portable terminal in place of the voice of the user.

Abstract: A method for controlling voice emoticons in a portable terminal for providing a recipient portable terminal with various voice files according to the emotions and feelings of the user in place of text-based emoticons, thereby enabling the various voice files to be played and to express rich emotions compared to the existing monotonous and dry TTS-based voice files. The method includes steps of: displaying a voice emoticon call menu for calling a voice emoticon menu on one area of a touch screen; displaying the voice emoticon menu provided with a voice emoticon list after the voice emoticon call menu is user-selected; and transmitting a voice emoticon user-selected from the voice emoticon list to a recipient portable terminal in place of the voice of the user.

Abstract: Disclosed is a communication system and, more particularly, a communication system using heterogeneous networks to support voice calls by combining private mobile networks, Mobile Network Operators (MNOs), and Public Switched Telephone Networks (PSTNs) even when an application for voice talk has not been installed on the mobile terminal.