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TS 23.206 (SA2)
Voice Call Continuity (VCC) between CS and IMS – Stage 2

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V7.5.0 (PDF)    2007/12    38 p.

Rapporteur:  Mr. Bennett, Andy
See also:  VCC-related TS/TR    

This TS specifies the functional architecture and information flows of the Voice Call Continuity feature which provides the capability to transfer the path of an existing voice call between a 3GPP CS system (GSM/UMTS) and IMS, and vice versa. These capabilities were designed per requirements in TS 22.101.

Note:  No upgrade to Rel-8 due to change of approach to VCC. This TS is migrated to TS 23.237


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1   Scope   PDF-p. 6
2   References
3   Definitions, symbols and abbreviations   PDF-p. 7
4   VCC Concepts   PDF-p. 8
5   Architecture
6   Information flows and procedures
6.1   Registration
6.2   Origination
6.3   Termination
6.4   Domain transfer   PDF-p. 21
6.5   Supplementary services   PDF-p. 27      Up
6.6   CAMEL services
6.7   Presence services   PDF-p. 29
6.8   Other procedures
7   Security
8   Charging   PDF-p. 30
A   Call diversion techniques from CS to IMS   PDF-p. 31
B   Domain selection for VCC   PDF-p. 33
C   Techniques for the prevention of circular looping for CS Terminations   PDF-p. 34      Up
D   Change history   PDF-p. 36

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