Session Control Manager Overview
▄ Cisco ASR 5000 Series Product Overview
Product Description
The Session Control Manager (SCM) delivers and controls a robust multimedia environment today, while preparing for
the networks of tomorrow. SCM provides an easy on-ramp to deploying Session Initiation Protocol (SIP)-based services
and a future-proof migration path to the IP Multimedia Subsystem/Multimedia Domain (IMS/MMD) architectures.
The SCM performs the following functions:
SIP routing
Translation and mobility
Admission control
Authentication
Registration
Emergency Registration
Packet network access based on pre-established policies and procedures
Localized policy selection and enforcement
Multimedia Call Detail Records (CDRs)
Per-subscriber service facilitation
SIP Application-level Gateway (ALG)
Media relay
Mitigate SIP Denial of Service (DoS)
Prevent registration hijacking
Prevent theft of service
The SCM consists of multiple IMS components that can be integrated into a single ASR 5000 platform or distributed as
standalone network elements:
IETF-compliant SIP Proxy/Registrar
3GPP/3GPP2-compliant Proxy Call/Session Control Function (P-CSCF)
3GPP/3GPP2-compliant Serving Call/Session Control Function (S-CSCF)
3GPP/3GPP2-compliant Interrogating Call/Session Control Function (I-CSCF)
3GPP/3GPP2 Breakout Gateway Control Function (BGCF)
3GPP/3GPP2-compliant Emergency Call/Session Control Function (E-CSCF)
3GPP/IETF-compliant Access Border Gateway (A-BG)
As standards-based network elements, SCM components can be integrated with each other or with third-party IMS
components.
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