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TS 23.279 (SA2) ★
Combining CS and IMS Services –
Stage 2

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for a better overview, the Table of Contents (ToC) is reproduced
V15.0.0 (PDF)  2018/06  37 p.
V14.0.0  2017/03  39 p.
V13.0.0  2015/12  39 p.
V12.0.0  2014/09  39 p.
V11.0.0  2012/09  39 p.
V10.0.0  2011/03  39 p.
V9.0.0  2009/12  38 p.
V8.1.0  2007/09  38 p.
V7.7.0  2007/09  38 p.

Rapporteur:  Mr. Hu, Yun-Chao
See also:
CSICS-related TS/TR
The combination of CS and IMS services (CSI) is the parallel operation of a CS service and an IMS session between the same two users. It does not require a specific subscription and a specific charging correlation.

This TS provides architectural details to combine CS services and IMS services for using them in parallel between the same two users in a peer-to-peer context. The document provides a detailed description of how capabilities and identities are exchanged to enable the combination of CS and IMS services between the same two UEs.

full Table of Contents for  TS 23.279  Word version:   15.0.0

 

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1  Scope [R7]  Word-p. 6
2  References [R7]
3  Definitions and abbreviations [R7]  Word-p. 7
3.1  Definitions
3.2  Abbreviations
4  Overall requirements [R7]  Word-p. 8
4.1  General description
4.2  Service requirements
5  Architectural requirements [R7]
5.1  Architectural requirements
5.2  Session scenarios  Word-p. 9
5.3  UE logic
6  Architecture [R7]  Word-p. 10
6.1  General Architecture
6.2  CSI Application Server (CSI AS)  Word-p. 11
6.2.1  CSI AS functionality
6.2.2  Initial Filter Criteria
7  Capability exchange [R7]
7.1  General
7.2  Capability information  Word-p. 12
7.2.1  Information about the current radio environment  Up
7.2.2  UE capability information
7.2.3  IM Status  Word-p. 13
7.3  Registering UE capability information
7.4  Multiple MEs per user
8  Information flows [R7]  Word-p. 14
8.1  Exchange of capability information at CS call setup
8.2  Exchange of UE capability information  Word-p. 15
8.3  User adds an IMS service to an ongoing CS call  Word-p. 17
8.3.1  IMS session set up without media requiring resource reservation
8.3.2  IMS session set- up with media requiring resource reservation  Word-p. 19
8.4  User adds a CS call to an ongoing IMS session  Word-p. 21
8.5  Release of CSI  Word-p. 22
8.6  Terminating a Multimedia IMS session to a CSI UE
9  Interaction with supplementary services [R7]  Word-p. 24
9.1  General
9.2  Line Identification
9.2.1  Calling Line Identity Presentation (CLIP)
9.2.2  Calling Line Identification Restriction (CLIR)
9.2.3  Connected Line Identification Presentation (COLP)  Word-p. 25
9.2.4  Connected Line Identification Restriction (COLR)  Up
9.3  Call Forwarding
9.4  Call Offering
9.4.1  Explicit Call Transfer (ECT)
9.5  Call Completion  Word-p. 26
9.5.1  Call Waiting (CW) and Call Hold (CH)
9.6  Call Barring
10  Other considerations [R7]
10.1  Handover
10.2  Relation to SMS
A  Support of CSI origination towards IMS termination with CSI interworking [R7]  Word-p. 27
A.1  Introduction
A.2  Overview
A.3  Procedures
A.3.1  General Architecture
A.3.3  Call flows for setting up the voice session for CSI origination and IMS termination with CSI interworking  Word-p. 28
A.3.4  Call flows for adding IMS sessions to existing voice calls for CSI origination with CSI interworking  Word-p. 31
B  Change history  Word-p. 35

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