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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
See also:

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  Scope [R9]Word-p. 9
2  References [R9]
3  Definitions and abbreviations [R9]Word-p. 10
4  General description [R9]
5  Functional entities [R9]
6  Communication between ICS UE and SCC AS via I1 interface [R9]
6.1  Introduction
6.2  Session control procedures
6.2.1  Session setup
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 [R9]
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 values [R9]Word-p. 83
B  Change historyWord-p. 84

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