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Oracle SBC Security Guide

Access

In an access model the SBC is contacted by a SIP endpoint to relay endpoint signaling information. The

IP address of the endpoint is usually not known, so trust should be established through behavior such as

establishment of a successful registration. Once the endpoint becomes trusted, dynamic Access Control

Lists (ACL) and Call Admission Controls (CAC) can be applied. Monitoring of potentially abusive

behaviors provides a mechanism to “demote” or blacklist endpoints.

Hybrid

A hybrid model combines both Peering and Access topologies into a single configuration. This is a fairly

common model, where remote users use a registrar server in the core network, but their calls are

forwarded to a service provider on one of the peer connections.

Unified Session Manager

The Unified Session Manager (USM) provides edge security for an IMS network, and should be

positioned at access borders to integrate "traditional" SBC functionality with the core IMS session control

functions. It provides a user registrar, local subscriber tables and Call Session Control Function

components such as Proxy CSCF, Interrogating CSCF, Session CSCF, IMS Access Gateway, Emergency

CSCF and Breakout Gateway Control Function.

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RedMax EXtreme EX-LRT Guía para resolver problemas Pagina 14