A mobile terminal, comprising: a speech recognition unit configured to recognize input speech; a mobile communication unit configured to perform a video call with at least one other terminal; and a controller configured to: display a screen related to the video call, receive a predetermined user input while performing the video call, recognize voice call contents through the speech recognition unit based on the received predetermined input while performing the video call, display, while performing the video call, a list including at least one application that was executing before the video call was performed, wherein the at least one application is interlocked with a voice search function, receive a user input for selecting a specific application from the displayed list, tag the recognized voice call contents to the selected application execute the selected application using the tagged voice call contents, search in the selected application according to a search word corresponding to the voice call contents, transmit an execution result of the selected application to at least one external device through a wireless communication unit of the mobile terminal, and display the screen related to the video call after the transmitting the execution result of the selected application. a speech recognition unit configured to recognize input speech; a mobile communication unit configured to perform a video call with at least one other terminal; and a controller configured to: display a screen related to the video call, receive a predetermined user input while performing the video call, recognize voice call contents through the speech recognition unit based on the received predetermined input while performing the video call, display, while performing the video call, a list including at least one application that was executing before the video call was performed, wherein the at least one application is interlocked with a voice search function, receive a user input for selecting a specific application from the displayed list, tag the recognized voice call contents to the selected application execute the selected application using the tagged voice call contents, search in the selected application according to a search word corresponding to the voice call contents, transmit an execution result of the selected application to at least one external device through a wireless communication unit of the mobile terminal, and display the screen related to the video call after the transmitting the execution result of the selected application. display a screen related to the video call, receive a predetermined user input while performing the video call, recognize voice call contents through the speech recognition unit based on the received predetermined input while performing the video call, display, while performing the video call, a list including at least one application that was executing before the video call was performed, wherein the at least one application is interlocked with a voice search function, receive a user input for selecting a specific application from the displayed list, tag the recognized voice call contents to the selected application execute the selected application using the tagged voice call contents, search in the selected application according to a search word corresponding to the voice call contents, transmit an execution result of the selected application to at least one external device through a wireless communication unit of the mobile terminal, and display the screen related to the video call after the transmitting the execution result of the selected application.