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