TS 123 206 : 7.5.0
Current
The latest, up-to-date edition.
DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+); UNIVERSAL MOBILE TELECOMMUNICATIONS SYSTEM (UMTS); VOICE CALL CONTINUITY (VCC) BETWEEN CIRCUIT SWITCHED (CS) AND IP MULTIMEDIA SUBSYSTEM (IMS); STAGE 2
Hardcopy , PDF
English
Intellectual Property Rights
Foreword
Foreword
1 Scope
2 References
3 Definitions, symbols and abbreviations
3.1 Definitions
3.2 Abbreviations
4 VCC Concepts
4.1 General
4.2 Radio environments
4.3 Domain selection
4.4 Anchoring in IMS of VCC subscriber calls
4.5 Domain transfer procedures
4.6 Regulatory aspects
5 Architecture
5.1 General
5.2 Reference model
5.3 VCC entities
5.4 Reference points
6 Information flows and procedures
6.1 Registration
6.2 Origination
6.3 Termination
6.4 Domain transfer
6.5 Supplementary services
6.6 CAMEL services
6.7 Presence services
6.8 Other procedures
7 Security
7.1 General
7.2 Access security for CS Domain
7.3 Access security for IMS
8 Charging
8.1 General description
8.2 Charging strategy
8.3 Accounting strategy
Annex A (informative): Call diversion techniques from
CS to IMS
A.1 Implementation options for call diversion from
CS to the DTF in IMS
Annex B (informative): Domain selection for VCC
Annex C (informative): Techniques for the prevention
of circular looping for CS Terminations
C.1 Implementation options prevention of circular
looping for CS Terminations
Annex D (informative): Change history
History
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