A Proposed IP Multimedia Subsystem Security Framework for Long Term Evaluation (LTE) Networks

for Long Term Evaluation (LTE) networks with multimedia services is proposed. It is based on the packet switched (IP) protocols which provide the best effort service. The paper creates an architecture for deploying VoIP applications that provides for both QoS and charging, and for efficiently integrating multiple different services, which can be easily mixed and matched to meet the user needs. The IMS layers vulnerabilities are analyzed and security mechanisms to handle such attacks are presented. Therefore the paper presents two scenarios to handle such attacks. Keywords—Security, IP Multimedia Subsystem (IMS), Internet Protocol (IP), Session Initiation Protocol (SIP)