TS 23.279 ★
Combining CS and IMS Services

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V16.0.0 (PDF) 2020/06 39 p.

V15.0.0 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 Huawei Tech.(UK) Co., Ltd

essential Table of Contents for TS 23.279 Word version: 16.0.0

each title, in the ┃ or ┃ area, links to the equivalent title in the CONTENT

2 References Word‑p. 6

3 Definitions and abbreviations Word‑p. 7

4 Overall requirements Word‑p. 8

4.1 General description Word‑p. 8

4.2 Service requirements Word‑p. 8

5 Architectural requirements Word‑p. 8

5.1 Architectural requirements Word‑p. 8

5.2 Session scenarios Word‑p. 9

5.3 UE logic Word‑p. 9

6 Architecture Word‑p. 10

6.1 General Architecture Word‑p. 10

6.2 CSI Application Server (CSI AS) Word‑p. 11

7 Capability exchange Word‑p. 11

7.1 General Word‑p. 11

7.2 Capability information Word‑p. 12

7.3 Registering UE capability information Word‑p. 13

7.4 Multiple MEs per user Word‑p. 13

8 Information flows Word‑p. 14

8.1 Exchange of capability information at CS call setup Word‑p. 14

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

8.4 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 Word‑p. 22

9 Interaction with supplementary services Word‑p. 24

9.1 General Word‑p. 24

9.2 Line Identification Word‑p. 24

9.3 Call Forwarding Word‑p. 25

9.4 Call Offering Word‑p. 25

9.5 Call Completion Word‑p. 26

9.6 Call Barring Word‑p. 26

10 Other considerations Word‑p. 26

10.1 Handover Word‑p. 26

10.2 Relation to SMS Word‑p. 26

A Support of CSI origination towards IMS termination with CSI interworking Word‑p. 27

A.1 Introduction Word‑p. 27

A.2 Overview Word‑p. 27

A.3 Procedures Word‑p. 27

$ Change history Word‑p. 35

TS 23.279 ★ Combining CS and IMS Services

essential Table of Contents for TS 23.279 Word version: 16.0.0

TS 23.279 ★
Combining CS and IMS Services