Abstract: The mobile communication terminal capable of accessing to a plurality of heterogeneous networks selectively, according to the present invention, comprises a process which communicates data with an application running on the mobile communication terminal, through a local socket created with its destination address set to a fixed internal address; and another process which creates at least one outward socket by setting its source address to an IP address assigned from one of the plurality of heterogeneous networks and its destination address to a remote address, and communicates data with an outside server of the remote address through the at least one outward socket. Data communication is made between the local socket and the at least one outward socket if the at least one outward socket is set as associated with the local socket.

Abstract: A wireless terminal of the present invention determines a section to be skipped on data of a selected content from the last position of unprocessed data based on information about dynamic state of the unprocessed data that has been received but is not played yet, if a requirement for using the second wireless network is satisfied while media data of the selected content is being received from an external server through the first wireless network. After determination of the section to skip, the wireless terminal transmits a transfer request demanding data right after the determined section to the external server through the second wireless network.

Abstract: A wireless communication terminal according to the present invention determines signal strength value of a particular property based on a data reception speed at the time of using a data service through an arbitrary AP (Access Point) of a wireless data network and prepares mutual communication property information including identification information of the arbitrary AP and type information (for example, model number) of the wireless communication terminal in addition to the determined value and reports the prepared mutual communication property information to a remote server.

Abstract: An entity executed in a wireless communication terminal according to the present invention transmits a series of requests to an external server through a first and a second communication network so that selected content can be received being divided between the two communication networks, receives data segments of the selected content transmitted through the two communication networks from the external server according to the series of requests and provides the received data segments to a processing unit intended for playing of content data in order of the data segments, and checks the amount of unprocessed data not yet provided. If the amount of unprocessed data is larger than a predetermined reference value, the entity transmits a series of requests demanding data of the selected content only to the second communication network which is more advantageous for a user form the aspect of cost in using a data service.