Patent ID: 7130291

Claim:
A data communication control system in a mobile communication system, comprising: a base station controller and switching system which identifies a type of an incoming call request requested by a calling party and determines an appropriate communication path so as to selectively provide a voice communication service or a data communication service based on the identified type of call request, and outputs data and signals which control call connection between the calling party and a called party through the determined communication path; and a data control system which selectively modulates and demodulates data from said base station controller and switching system by performing protocol communication with said base station controller and switching system, wherein the data control system comprises: a connection device to mobile data which provides a data path for signals and data transmission between a base station and the data control system; and a connection device to public network data which connects a public network of the data control system with a public network of the base station controller and switching system and sets a data traffic path between the data control system and the base station controller and switching system, and wherein the calling party is connected to the called party through a channel source provided between the base station controller and switching system and the connection device to the public network data and, wherein an appropriate communication network path is set based on this connection state.