Cisco ASR 5000 series Product Overview page 15

Session Control Manager Overview ............................................................. 573
Product Description .............................................................................................................................................. 574
IMS Architecture ............................................................................................................................................. 575
Proxy-CSCF ................................................................................................................................................ 577
Interrogating-CSCF .................................................................................................................................... 578
Serving-CSCF ............................................................................................................................................. 578
Emergency-CSCF ....................................................................................................................................... 580
A-BG........................................................................................................................................................... 580
Product Specifications .......................................................................................................................................... 582
Technical Specifications .................................................................................................................................. 582
Licenses ........................................................................................................................................................... 582
Hardware Requirements .................................................................................................................................. 583
Platforms ..................................................................................................................................................... 583
System Hardware Components ................................................................................................................... 583
Operating System Requirements ..................................................................................................................... 584
Network Deployments and Interfaces .................................................................................................................. 585
SCM in a CDMA2000 Data Network Deployment ......................................................................................... 585
Integrated CSCF / A-BG / HA .................................................................................................................... 585
Logical Network Interfaces (Reference Points) .......................................................................................... 585
SCM in a GSM/UMTS Data Network Deployment ........................................................................................ 587
CSCF / A-BG / GGSN Deployment ........................................................................................................... 587
Logical Network Interfaces (Reference Points) .......................................................................................... 587
Features and Functionality - Base Software ......................................................................................................... 589
Call Abort Handling ........................................................................................................................................ 589
Call Forking ..................................................................................................................................................... 589
Call Types Supported ...................................................................................................................................... 589
Early IMS Security .......................................................................................................................................... 590
Emergency Call Support .................................................................................................................................. 590
Error Handling ................................................................................................................................................. 590
Future-proof Solution ...................................................................................................................................... 590
Intelligent Integration ...................................................................................................................................... 590
Interworking Function ..................................................................................................................................... 590
MSRP Support ................................................................................................................................................. 591
Presence Enabled ............................................................................................................................................. 591
Redirection ...................................................................................................................................................... 591
Redundancy and Session Recovery ................................................................................................................. 591
Registration Event Package ............................................................................................................................. 591
Signaling Compression (SigComp) ................................................................................................................. 591
SIP Denial of Service (DoS) Attack Prevention .............................................................................................. 592
SIP Intelligence at the Core ............................................................................................................................. 592
SIP Large Message Support ............................................................................................................................. 592
SIP Routing Engine ......................................................................................................................................... 593
Shared Initial Filter Criteria (SiFC) ................................................................................................................. 593
Telephony Application Server (TAS) Basic Supported ................................................................................... 593
Trust Domain ................................................................................................................................................... 595
Features and Functionality - Licensed Enhanced Feature Support ....................................................................... 596
Interchassis Session Recovery ......................................................................................................................... 596
IPSec Support .................................................................................................................................................. 597
IPv4-IPv6 Interworking ................................................................................................................................... 597
IPv6 Support .................................................................................................................................................... 599
Session Recovery Support ............................................................................................................................... 601
How the SCM Works ........................................................................................................................................... 603
Admission and Routing ................................................................................................................................... 603
CSCF Access Control Lists ........................................................................................................................ 603
Translation Lists ......................................................................................................................................... 603
OL-22938-02
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