UDP HOLE PUNCHING METHOD USING SIP, TERMINAL MANAGEMENT SYSTEM AND MANAGEMENT METHOD USING THE UDP HOLE PUNCHING METHOD

摘要

PURPOSE: A UDP hole punching method using SIP and a system and a method for managing terminal using the same are provided to simply form a UDP hole by using a specific SIP message for generating an internet call and controlling a session, thereby performing interactive remote terminal management in real time. CONSTITUTION: A call generator(310) generates an SIP(Session Initiation Protocol) message. The call generator transmits a call generation message to an internet phone terminal(410). If a SIP INVITE message of the call generator is received, a SBC(Session Border Controller) device(500) changes a private IP in a SDP(Session Description Protocol) to a public IP. A terminal management server(110) generates various management information through SNMP(Simple Network Management Protocol) or HTTP message exchange with the internet phone terminal.