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TS 22.279SA1
Combined CS and IMS Sessions –
Stage 1

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V15.0.0 (PDF)  2018/06  16 p.
V14.0.0  2017/03  16 p.
V13.0.0  2016/01  16 p.
V12.0.0  2014/10  16 p.
V11.0.0  2012/09  16 p.
V10.0.0  2011/04  16 p.
V9.0.0  2009/12  16 p.
V8.0.0  2009/01  16 p.
V7.1.0  2005/12  16 p.

Rapporteur:  Ms. Mustapha, Mona

This TS specifies service requirements for Combining CS and IMS services using a CS speech or CS multimedia call in association with an IMS session. The IMS session may consist of one or more IMS services. Requirements for the following capabilities are included:
  • Radio capability exchange.
  • Terminal capability exchange.
  • E.164 number exchange.
  • Adding IMS session to an ongoing CS call.
  • Adding a CS call to an ongoing IMS session.
  • Supplementary services as they relate to CSICS.
It is intended that the capabilities defined herein for CSICS shall support interoperability between different operator networks, and roaming.

full Table of Contents for  TS 22.279  Word version:   15.0.0

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1  ScopeWord-p. 7
2  References
3  Definitions, symbols and abbreviations
4  Introduction to Combinational Service
5  General requirements
6  User experience of combinational servicesWord-p. 9
7  Service Capability Detection
8  IMS service behaviour during a Combinational ServiceWord-p. 10
9  Interaction with supplementary services
9.1  Line Identification
9.2  Name Identification
9.3  Call ForwardingUp
9.4  Call OfferingWord-p. 12
9.5  Call Completion
9.6  Multi Party
9.7  Community of Interest
9.8  ChargingWord-p. 13
9.9  Additional Info TransferUp
9.10  Call Barring
9.11  Call PriorityWord-p. 14
10  Impacts on other services
11  Charging aspects for Combinational Service
12  Provisioning
A  Change historyWord-p. 15

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