A PHONE-BASED MOBILE INTERNET PROTOCOL, VOICE OVER INTERNET PROTOCOL, AND SESSION INITIATION PROTOCOL, SESSION INITIATION PROTOCOL SERVER, AND ROUTING PATH CONTROL METHOD FOR SESSION INITIATION PROTOCOL SERVICE

摘要

Disclosed is a method for controlling a routing path for a voice-over-intemet protocol service based on a mobile intemet protocol and a session initiation protocol, the method including the steps of sensing a mobile terminals entry into a different network and performing a mobile intemet protocol re-registration; the mobile terminal transmitting a register message, which includes a Foreign Agent Care-of Address and a home address of the mobile terminal, to a session initiation protocol server after performing the mobile intemet protocol re-registration through a foreign agent, thereby carrying out a session initiation protocol registration; the session initiation protocol server creating a tunnel between the session initiation protocol server and the foreign agent with reference to the register message when receiving an invite message from a correspondent terminal after the session initiation protocol registration is carried out, and transmitting the invite message to the mobile terminal through the tunnel.