5 Oracle USM Supporting the IMS Edge

The ETSI TISPAN NGN defines several subsystems that make up the NGN architecture. The Oracle Communications Unified Session Manager is an integrated session control, policy enforcement and media management solution that incorporates functional components of the IP multimedia subsystem (IMS), the Resource and Admission Control Subsystem (RACS) and functions necessary for connecting with other IP networks/domains.

The functions of the Oracle Communications Session Border Controller within the NGN architecture are divided into access/interconnect and core functions. This chapter addresses the access and interconnect functions. Oracle USM core functions are addressed in the Oracle USM Supporting the IMS Core chapter.