APPARATUS, SYSTEM AND METHOD FOR DETECTING ABNORMAL VOLTE REGISTRATION MESSAGE IN 4G MOBILE NETWORK

摘要

An apparatus for detecting an abnormal VoLTE registration message in a 4G mobile network includes a packet information extraction unit, a session information storage unit, a packet analysis unit, and a packet processing unit which processes the GTP-U packet according to a detection policy when the SIP REGISTER message is the abnormal ISP REGISTER message.