Call Forking - Cisco ASR 5000 series Product Overview

Session Control Manager Overview
Features and Functionality - Base Software
The following is a list containing a variety of features found in the SCM and the benefits they provide.
Call Abort Handling
Call abort handling provides resource cleanup in error scenarios and makes sure resources that are not being used can be
used for new calls. This feature is managed gracefully for a P-CSCF failure and CLI-initiated subscriber and session
clean up.

Call Forking

Call forking allows subscribers to receive calls wherever they are by enabling multi-location UE registration.
Call Types Supported
In the IMS architecture, telephony features are normally provided by an external application server. Providing these
features with the S-CSCF:
Reduces the need for an additional SIP AS
Simplifies the network architecture
Improves latency for call setup and feature invocation
The following call types are supported:
Directory service, toll-free, long distance, international, and operator-assisted calls - are supported through
translation lists.
Emergency calls - are managed through the addition of an Emergency Call/Session Control Function (E-CSCF)
that routes emergency calls to a Public Safety Answering Point (PSAP).
Mobile-to-Mobile SIP calls - supports SIP-based VoIP calls between mobile data users.
Public Switched Telephone Network (PSTN) calls - can be routed through a 3GPP/2 compliant BGCF located
in the S-CSCF.
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Features and Functionality - Base Software ▀
Cisco ASR 5000 Series Product Overview ▄