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TS 24.294 (CT1)
ICS Protocol via I1 Interface

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V15.0.0 (PDF)  2018/06  88 p.
V14.0.0  2017/03  89 p.
V13.0.0  2015/12  88 p.
V12.0.0  2014/09  88 p.
V11.0.0  2012/09  88 p.
V10.1.0  2011/09  88 p.
V9.6.0  2011/09  88 p.

Rapporteur:  Mr. Mayer, Georg

This TS describes the I1 interface between IMS Centralized Services (ICS) UE and Service Centralization and Continuity (SCC) Application Server (AS).

full Table of Contents for  TS 24.294  Word version:   15.0.0

 

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1  ScopeWord-p. 9
2  References
3  Definitions and abbreviationsWord-p. 10
4  General description
5  Functional entities
6  Communication between ICS UE and SCC AS via I1 interface
6.1  Introduction
6.2  Session control procedures
6.2.1  Session setup
6.2.2Void
6.2.3  Session release
6.2.3A  I1 session setup when invoking mid-call supplementary service
6.2.4  Adding I1 control to existing CS session (I1 Augmentation)Word-p. 27
6.2.5  Service control transfer (Gm fallback to I1)Word-p. 28
6.2.6  Assignment of single CS bearer to I1 sessions
6.3  Supplementary services control proceduresWord-p. 35
6.3.0  Introduction
6.3.1  Line ID Services (OIP, OIR, TIP, TIR)Word-p. 36
6.3.2  Communication diversion services (CDIV)
6.3.4  Communication Hold (HOLD)/ResumeWord-p. 38
6.3.5  Consultative Explicit Communication TransferWord-p. 39
6.3.6  Conference calling (CONF)Word-p. 40
6.3.7  Communication Waiting
6.4  SCC AS and ICS UE Time Synchronization
7  Protocol specification and implementation
7.1  Overview of I1 protocol functionality
7.2  I1-protocol messages and functional definitionWord-p. 45
7.3  Messages
7.4  I1 information elements and functional definitionWord-p. 56
7.5  Session states and Session control proceduresWord-p. 75
7.5.1  General
7.5.2  Session states
7.5.3  Session control procedures
A (Normative)  Data structure associating keys with valuesWord-p. 83
B  Change historyWord-p. 84

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