摘要
The Advances to IP Multimedia Subsystem (A-IMS) architecture,based on the 3rd Generation Partnership Project 2 (3GPP2)’s Multimedia Domain (MMD),integrates all the service functions based on the Session Initiation Protocol (SIP) of the IP Multimedia Subsystem (IMS) and Multimedia Domain (MMD). Moreover,it supports the non-SIP applications. As for network operation,the A-IMS architecture makes some extension and supplement to the security of the IMS/MMD network,such as the addition of Security Operation Center (SOC) and posture agent,which greatly improves the security of the IMS/MMD network. The research of A-IMS is still in the stage of framework description,and still has many unclear details such as terminal support for the posture agent,content of the security information exchange,and definition of security policy,which ask for further research.
The Advances to IP Multimedia Subsystem (A-IMS) architecture,based on the 3rd Generation Partnership Project 2 (3GPP2)'s Multimedia Domain (MMD),integrates all the service functions based on the Session Initiation Protocol (SIP) of the IP Multimedia Subsystem (IMS) and Multimedia Domain (MMD). Moreover,it supports the non-SIP applications. As for network operation,the A-IMS architecture makes some extension and supplement to the security of the IMS/MMD network,such as the addition of Security Operation Center (SOC) and posture agent,which greatly improves the security of the IMS/MMD network. The research of A-IMS is still in the stage of framework description,and still has many unclear details such as terminal support for the posture agent,content of the security information exchange,and definition of security policy,which ask for further research.
