High reliable session control baced on client/server network control method for safe payment using multi interface user terminal in wire-wireless internet

PURPOSE: A network management method capable of controlling a high-reliability session based on a client and a server is provided to offer an electronic signature and to assure integrity by encoding transmission and reception information in wire and wireless internet environment. CONSTITUTION: Terminal state information is transmitted to a network management system(100) through the terminal agent of a user terminal(110). The network management system identifies a security channel and other access network which contacts to the user terminal based on transmission and reception information. The user terminal requests payment to a payment agency system(120).