ETSI TS 122 279 V15.0.0 (2018-07)

Universal Mobile Telecommunications System (UMTS); LTE; Combined Circuit Switched (CS) and IP Multimedia Subsystem (IMS) sessions; Stage 1 (3GPP TS 22.279 version 15.0.0 Release 15)

RTS/TSGS-0122279vf00

General Information

• Status: Published
• Publication Date: 12-Jul-2018
• Technical Committee: 3GPP SA 1 - Services
• Current Stage: 12 - Completion
• Completion Date: 13-Jul-2018

Standards Content (Sample)

ETSI TS 122 279 V15.0.0 (2018-07)






TECHNICAL SPECIFICATION
Universal Mobile Telecommunications System (UMTS);
LTE;
Combined Circuit Switched (CS)
and IP Multimedia Subsystem (IMS) sessions;
Stage 1
(3GPP TS 22.279 version 15.0.0 Release 15)

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3GPP TS 22.279 version 15.0.0 Release 15 1 ETSI TS 122 279 V15.0.0 (2018-07)



Reference
RTS/TSGS-0122279vf00
Keywords
LTE,UMTS
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3GPP TS 22.279 version 15.0.0 Release 15 2 ETSI TS 122 279 V15.0.0 (2018-07)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (https://ipr.etsi.org/).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
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server) which are, or may be, or may become, essential to the present document.
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Foreword
This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP).
The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or
GSM identities. These should be interpreted as being references to the corresponding ETSI deliverables.
The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under
http://webapp.etsi.org/key/queryform.asp.
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
ETSI

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3GPP TS 22.279 version 15.0.0 Release 15 3 ETSI TS 122 279 V15.0.0 (2018-07)
Contents
Intellectual Property Rights . 2
Foreword . 2
Modal verbs terminology . 2
Foreword . 5
1 Scope . 6
2 References . 6
3 Definitions, symbols and abbreviations . 6
3.1 Definitions . 6
3.2 Abbreviations . 7
4 Introduction to Combinational Service . 7
5 General requirements . 7
6 User experience of combinational services . 7
7 Service Capability Detection . 8
7.1 General . 8
7.2 User privacy . 8
8 IMS service behaviour during a Combinational Service . 8
9 Interaction with supplementary services . 9
9.1 Line Identification . 9
9.1.1 Calling Line Identity Presentation (CLIP) . 9
9.1.2 Calling Line Identity Restriction (CLIR) . 9
9.1.3 Connected Line Identification Presentation (COLP) . 9
9.1.4 Connected Line Identification Restriction (COLR) . 9
9.2 Name Identification . 10
9.2.1 Calling Name Presentation (CNAP) . 10
9.3 Call Forwarding . 10
9.3.1 Call Forwarding Unconditional (CFU) . 10
9.3.2 Call Forwarding on Busy (CFB) . 10
9.3.3 Call Forwarding on No Reply (CFNRY) . 10
9.3.4 Call Forwarding on Not Reachable (CFNRC) . 10
9.3.5 Call Deflection (CD) . 10
9.4 Call Offering . 10
9.4.1 Explicit Call Transfer (ECT) . 10
9.5 Call Completion . 10
9.5.1 Call Waiting (CW) . 10
9.5.2 Call Hold (CH) . 10
9.5.3 Call Completion to Busy Subscriber (CCBS) . 11
9.5.4 Multi Call (MC) . 11
9.6 Multi Party. 11
9.6.1 Multi Party call (MPTY) . 11
9.7 Community of Interest . 11
9.7.1 Closed User Group (CUG) . 11
9.8 Charging . 11
9.8.1 Advice of Charge - Information (AOCI) . 11
9.8.2 Advice of charge – Charge (AOCC) . 11
9.9 Additional Info Transfer . 11
9.9.1 User-to-User Signalling service 1 (UUS1) . 11
9.9.2 User-to-User Signalling service 2 (UUS2) . 11
9.9.3 User-to-User Signalling service 3 (UUS3) . 11
9.10 Call Barring . 12
9.10.1 Barring of All Outgoing Calls (BAOC) . 12
9.10.2 Barring of Outgoing International Calls (BOIC) . 12
ETSI

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3GPP TS 22.279 version 15.0.0 Release 15 4 ETSI TS 122 279 V15.0.0 (2018-07)
9.10.3 Barring of Outgoing International Calls except to HPLMN country (BOIC-exHc) . 12
9.10.4 Barring of All Incoming Calls (BAIC) . 12
9.10.5 Barring of All Incoming Calls when roaming outside HPLMN country (BICROAM) . 12
9.11 Call Priority . 12
9.11.1 Enhanced Multi Level Precedence Pre-emption (EMLPP) . 12
10 Impacts on other services . 12
10.1 Support of Teleservices during a combinational service . 12
10.2 Support of Location Services during a combinational service . 12
11 Charging aspects for Combinational Service . 12
12 Provisioning . 13
Annex A (informative): Change history . 14
History . 15

ETSI

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3GPP TS 22.279 version 15.0.0 Release 15 5 ETSI TS 122 279 V15.0.0 (2018-07)
Foreword
rd
This Technical Specification has been produced by the 3 Generation Partnership Project (3GPP).
The contents of the present document are subject to continuing work within the TSG and may change following formal
TSG approval. Should the TSG modify the contents of the present document, it will be re-released by the TSG with an
identifying change of release date and an increase in version number as follows:
Version x.y.z
where:
x the first digit:
1 presented to TSG for information;
2 presented to TSG for approval;
3 or greater indicates TSG approved document under change control.
y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections,
updates, etc.
z the third digit is incremented when editorial only changes have been incorporated in the document.

ETSI

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3GPP TS 22.279 version 15.0.0 Release 15 6 ETSI TS 122 279 V15.0.0 (2018-07)
1 Scope
The present document 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.
2 References
The following documents contain provisions which, through reference in this text, constitute provisions of the present
document.
• References are either specific (identified by date of publication, edition number, version number, etc.) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including
a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same
Release as the present document.
[1] 3GPP TR 21.905: "Vocabulary for 3GPP Specifications".
[2] 3GPP TR 22.979: "Feasibility study on Combined CS Calls and IMS Sessions".
[3] 3GPP TS 22.228: "Service requirements for the Internet Protocol (IP) multimedia core network
subsystem".
[4] 3GPP TS 22.004: "General on Supplementary Services".
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
Combinational Service: A combinational service is created by adding one or more IMS session(s) to a CS call (or vice
versa). The CS call and IMS session are established between the same participants.
Combinational call: this is the name given to the service in which a circuit switched speech teleservice is enriched by
adding an IMS session where both services (IMS session and CS call) are originated in one single UE and are
terminated in another single UE.
Combinational Session: this is the name given to the service in which an ongoing IMS session between two users is
enriched by adding a circuit switched based call. The individual service instances that form the combinational session
are originated in a single UE and terminated in another single UE.
CSICS capable UE: UE that supports Combinational Service.
ETSI

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3GPP TS 22.279 version 15.0.0 Release 15 7 ETSI TS 122 279 V15.0.0 (2018-07)
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply. Additional applicable abbreviations can be
found in TR 21.905 [1].
CSICS Circuit Switched IMS Combinational Service
4 Introduction to Combinational Service
Combinational services are applicable to both UTRAN and GERAN and enables the unidirectional or bi-directional
exchange of PS data within the context of an IMS session
A specifi
...