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TECHNICAL SPECIFICATION
Digital cellular telecommunications system (Phase 2+) (GSM);
Universal Mobile Telecommunications System (UMTS);
LTE;
IP multimedia call control protocol based on
Session Initiation Protocol (SIP)
and Session Description Protocol (SDP);
Stage 3
(3GPP TS 24.229 version 9.31.0 Release 9)
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3GPP TS 24.229 version 9.31.0 Release 9 1 ETSI TS 124 229 V9.31.0 (2019-01)
Reference
RTS/TSGC-0124229v9v0
Keywords
GSM,LTE,UMTS
ETSI
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© ETSI 2019.
All rights reserved.
TM TM TM
DECT , PLUGTESTS , UMTS and the ETSI logo are trademarks of ETSI registered for the benefit of its Members.
TM TM
3GPP and LTE are trademarks of ETSI registered for the benefit of its Members and
of the 3GPP Organizational Partners.
oneM2M™ logo is a trademark of ETSI registered for the benefit of its Members and
of the oneM2M Partners
GSM and the GSM logo are trademarks registered and owned by the GSM Association.
ETSI
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3GPP TS 24.229 version 9.31.0 Release 9 2 ETSI TS 124 229 V9.31.0 (2019-01)
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
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Trademarks
The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.
ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does
not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.
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
.
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 24.229 version 9.31.0 Release 9 3 ETSI TS 124 229 V9.31.0 (2019-01)
Contents
Intellectual Property Rights . 2
Foreword . 2
Modal verbs terminology . 2
Foreword . 24
1 Scope . 25
2 References . 25
3 Definitions and abbreviations . 35
3.1 Definitions . 35
3.2 Abbreviations . 40
3A Interoperability with different IP-CAN . 43
4 General . 43
4.1 Conformance of IM CN subsystem entities to SIP, SDP and other protocols . 43
4.2 URI and address assignments . 46
4.2A Transport mechanisms . 47
4.2B Security mechanisms . 48
4.2B.1 Signalling security . 48
4.2B.2 Media security . 49
4.3 Routeing principles of IM CN subsystem entities . 50
4.4 Trust domain . 50
4.4.1 General . 50
4.4.2 P-Asserted-Identity . 51
4.4.3 P-Access-Network-Info . 51
4.4.4 History-Info . 51
4.4.5 P-Asserted-Service. 51
4.4.6 Resource-Priority . 51
4.4.7 Reason (in a response) . 52
4.4.8 P-Profile-Key . 52
4.4.9 P-Served-User . 52
4.4.10 P-Private-Network-Indication . 52
4.4.11 P-Early-Media . 52
4.4.12 CPC and OLI . 52
4.5 Charging correlation principles for IM CN subsystems . 52
4.5.1 Overview . 52
4.5.2 IM CN subsystem charging identifier (ICID) . 53
4.5.3 Access network charging information . 53
4.5.3.1 General . 53
4.5.3.2 Access network charging information . 53
4.5.4 Inter operator identifier (IOI) . 54
4.5.5 Charging function addresses . 54
4.6 Support of local service numbers . 55
4.7 Emergency service . 55
4.8 Void . 56
4.9 Overlap signalling . 56
4.9.1 General . 56
4.9.2 Overlap signalling methods . 56
4.9.2.1 In-dialog method . 56
4.9.2.1.1 General . 56
4.9.2.2 Multiple-INVITE method . 56
4.9.2.2.1 General . 56
4.9.3 Routeing impacts . 57
4.9.3.1 General . 57
4.9.3.2 Deterministic routeing . 57
4.9.3.3 Digit collection . 57
4.10 Dialog correlation for IM CN subsystems . 57
ETSI
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3GPP TS 24.229 version 9.31.0 Release 9 4 ETSI TS 124 229 V9.31.0 (2019-01)
4.10.1 General . 57
4.10.2 CONF usage. 58
5 Application usage of SIP . 58
5.1 Procedures at the UE . 58
5.1.0 General . 58
5.1.1 Registration and authentication. 58
5.1.1.1 General . 58
5.1.1.1A Parameters contained in the ISIM . 58
5.1.1.1B Parameters provisioned to a UE without ISIM or USIM . 59
5.1.1.1B.1 Parameters provisioned in the IMC . 59
5.1.1.1B.2 Parameters when UE does not contain ISIM, USIM or IMC . 59
5.1.1.2 Initial registration . 59
5.1.1.2.1 General . 59
5.1.1.2.2 Initial registration using IMS AKA . 63
5.1.1.2.3 Initial registration using SIP digest without TLS . 64
5.1.1.2.4 Initial registration using SIP digest with TLS . 64
5.1.1.2.5 Initial registration using NASS-IMS bundled authentication . 65
5.1.1.2.6 Initial registration using GPRS-IMS-Bundled authentication . 65
5.1.1.3 Subscription to the registration-state event package . 66
5.1.1.3A . 66
5.1.1.4 User-initiated reregistration and registration of an additional public user identity . 66
5.1.1.4.1 General . 66
5.1.1.4.2 IMS AKA as a security mechanism. 69
5.1.1.4.3 SIP digest without TLS as a security mechanism . 70
5.1.1.4.4 SIP digest with TLS as a security mechanism . 70
5.1.1.4.5 NASS-IMS bundled authentication as a security mechanism . 70
5.1.1.4.6 GPRS-IMS-Bundled authentication as a security mechanism . 71
5.1.1.5 Authentication . 71
5.1.1.5.1 IMS AKA - general . 71
5.1.1.5.2 Void . 73
5.1.1.5.3 IMS AKA abnormal cases . 73
5.1.1.5.4 SIP digest without TLS – general . 73
5.1.1.5.5 SIP digest without TLS – abnormal procedures . 74
5.1.1.5.6 SIP digest with TLS – general . 74
5.1.1.5.7 SIP digest with TLS – abnormal procedures . 74
5.1.1.5.8 NASS-IMS bundled authentication – general . 74
5.1.1.5.9 NASS-IMS bundled authentication – abnormal procedures . 74
5.1.1.5.10 GPRS-IMS-Bundled authentication – general . 74
5.1.1.5.11 GPRS-IMS-Bundled authentication – abnormal procedures . 75
5.1.1.5.12 Abnormal procedures for all security mechanisms . 75
5.1.1.5A Network-initiated re-authentication . 75
5.1.1.5B Change of IPv6 address due to privacy . 75
5.1.1.6 User-initiated deregistration . 76
5.1.1.6.1 General . 76
5.1.1.6.2 IMS AKA as a security mechanism. 78
5.1.1.6.3 SIP digest without TLS as a security mechanism . 78
5.1.1.6.4 SIP digest with TLS as a security mechanism . 79
5.1.1.6.5 NASS-IMS bundled authentication as a security mechanism . 79
5.1.1.6.6 GPRS-IMS-Bundled authentication as a security mechanism . 79
5.1.1.7 Network-initiated deregistration . 80
5.1.2 Subscription and notification . 80
5.1.2.1 Notification about multiple registered public user identities . 80
5.1.2.2 General SUBSCRIBE requirements . 81
5.1.2A Generic procedures applicable to all methods excluding the REGISTER method . 81
5.1.2A.1 UE-originating case . 81
5.1.2A.1.1 General . 81
5.1.2A.1.2 Structure of Request-URI . 85
5.1.2A.1.3 UE without dial string processing capabilities . 85
5.1.2A.1.4 UE with dial string processing capabilities. 86
5.1.2A.1.5 Setting the "phone-context" tel URI parameter . 86
5.1.2A.1.6 Abnormal cases . 87
ETSI
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3GPP TS 24.229 version 9.31.0 Release 9 5 ETSI TS 124 229 V9.31.0 (2019-01)
5.1.2A.2 UE-terminating case . 87
5.1.3 Call initiation - UE-originating case . 89
5.1.3.1 Initial INVITE request . 89
5.1.4 Call initiation - UE-terminating case . 91
5.1.4.1 Initial INVITE request . 91
5.1.5 Call release. 92
5.1.6 Emergency service . 92
5.1.6.1 General . 92
5.1.6.2 Initial emergency registration. 93
5.1.6.2A New initial emergency registration . 94
5.1.6.3 Initial subscription to the registration-state event package . 94
5.1.6.4 User-initiated emergency reregistration . 94
5.1.6.5 Authentication . 94
5.1.6.6 User-initiated emergency deregistration . 94
5.1.6.7 Network-initiated emergency deregistration . 94
5.1.6.8 Emergency session setup . 94
5.1.6.8.1 General . 94
5.1.6.8.2 Emergency session set-up in case of no registration . 95
5.1.6.8.3 Emergency session set-up within an emergency registration . 97
5.1.6.8.4 Emergency session setup within a non-emergency registration . 98
5.1.6.9 Emergency session release . 100
5.1.6.10 Response to non-UE detectable emergency call . 100
5.1.7 Void . 101
5.1.8 Void . 101
5.2 Procedures at the P-CSCF . 101
5.2.1 General . 101
5.2.2 Registration . 103
5.2.2.1 General . 103
5.2.2.2 IMS AKA as a security mechanism . 107
5.2.2.3 SIP digest without TLS as a security mechanism . 110
5.2.2.4 SIP digest with TLS as a security mechanism. 111
5.2.2.5 NASS-IMS bundled authentication as a security mechanism . 113
5.2.2.6 GPRS-IMS-Bundled authentication as a security mechanism . 113
5.2.3 Subscription to the user's registration-state event package . 113
5.2.3A Void . 114
5.2.3B SUBSCRIBE request . 114
5.2.4 Registration of multiple public user identities . 114
5.2.5 Deregistration . 116
5.2.5.1 User-initiated deregistration . 116
5.2.5.2 Network-initiated deregistration . 116
5.2.6 General treatment for all dialogs and standalone transactions excluding the REGISTER method . 117
5.2.6.1 Introduction . 117
5.2.6.2 Determination of UE-originated or UE-terminated case . 117
5.2.6.3 Requests initiated by the UE . 117
5.2.6.3.1 General for all requests .
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