ETSI TS 124 229 V15.9.0 (2020-01)

ETSI TS 124 229 V15.9.0 (2020-01)






TECHNICAL SPECIFICATION
Digital cellular telecommunications system (Phase 2+) (GSM);
Universal Mobile Telecommunications System (UMTS);
LTE;
5G;
IP multimedia call control protocol based on
Session Initiation Protocol (SIP)
and Session Description Protocol (SDP);
Stage 3
(3GPP TS 24.229 version 15.9.0 Release 15)



---------------------- Page: 1 ----------------------
3GPP TS 24.229 version 15.9.0 Release 15 1 ETSI TS 124 229 V15.9.0 (2020-01)



Reference
RTS/TSGC-0124229vf90
Keywords
5G,GSM,LTE,UMTS
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: +33 4 92 94 42 00  Fax: +33 4 93 65 47 16

Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88

Important notice
The present document can be downloaded from:
http://www.etsi.org/standards-search
The present document may be made available in electronic versions and/or in print. The content of any electronic and/or
print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any
existing or perceived difference in contents between such versions and/or in print, the prevailing version of an ETSI
deliverable is the one made publicly available in PDF format at www.etsi.org/deliver.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx
If you find errors in the present document, please send your comment to one of the following services:
https://portal.etsi.org/People/CommiteeSupportStaff.aspx
Copyright Notification
No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying
and microfilm except as authorized by written permission of ETSI.
The content of the PDF version shall not be modified without the written authorization of ETSI.
The copyright and the foregoing restriction extend to reproduction in all media.

© ETSI 2020.
All rights reserved.

DECT™, PLUGTESTS™, UMTS™ and the ETSI logo are trademarks of ETSI registered for the benefit of its Members.

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

---------------------- Page: 2 ----------------------
3GPP TS 24.229 version 15.9.0 Release 15 2 ETSI TS 124 229 V15.9.0 (2020-01)
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.
Legal Notice
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. These shall be
interpreted as being references to the corresponding ETSI deliverables.
The cross reference between 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

---------------------- Page: 3 ----------------------
3GPP TS 24.229 version 15.9.0 Release 15 3 ETSI TS 124 229 V15.9.0 (2020-01)
Contents
Intellectual Property Rights . 2
Legal Notice . 2
Modal verbs terminology . 2
Foreword . 37
1 Scope . 38
2 References . 39
3 Definitions and abbreviations . 53
3.1 Definitions . 53
3.2 Abbreviations . 61
3A Interoperability with different IP-CAN . 64
4 General . 65
4.1 Conformance of IM CN subsystem entities to SIP, SDP and other protocols . 65
4.2 URI and address assignments . 68
4.2A Transport mechanisms . 70
4.2B Security mechanisms . 70
4.2B.1 Signalling security . 70
4.2B.2 Media security . 72
4.3 Routeing principles of IM CN subsystem entities . 75
4.4 Trust domain . 75
4.4.1 General . 75
4.4.2 P-Asserted-Identity . 76
4.4.3 P-Access-Network-Info . 76
4.4.4 History-Info . 77
4.4.5 P-Asserted-Service. 77
4.4.6 Resource-Priority . 77
4.4.7 Reason (in a response) . 77
4.4.8 P-Profile-Key . 77
4.4.9 P-Served-User . 77
4.4.10 P-Private-Network-Indication . 77
4.4.11 P-Early-Media . 78
4.4.12 CPC and OLI . 78
4.4.13 Feature-Caps . 78
4.4.14 Priority . 78
4.4.15 iotl . 78
4.4.16 Restoration-Info . 78
4.4.17 Relayed-Charge . 78
4.4.18 Service-Interact-Info . 78
4.4.19 Cellular-Network-Info . 79
4.4.20 Response-Source . 79
4.4.21 Attestation-Info header field . 79
4.4.22 Origination-Id header field . 79
4.5 Charging correlation principles for IM CN subsystems . 79
4.5.1 Overview . 79
4.5.2 IM CN subsystem charging identifier (ICID) . 80
4.5.2A Related ICID . 80
4.5.3 Access network charging information . 81
4.5.3.1 General . 81
4.5.3.2 Access network charging information . 81
4.5.4 Inter operator identifier (IOI) . 81
4.5.4A Transit inter operator identifier (Transit IOI) . 83
4.5.5 Charging function addresses . 84
4.5.6 Relayed charge parameters . 84
4.5.7 Loopback-indication parameter . 84
ETSI

---------------------- Page: 4 ----------------------
3GPP TS 24.229 version 15.9.0 Release 15 4 ETSI TS 124 229 V15.9.0 (2020-01)
4.5.8 IM CN subsystem Functional Entity Identifier . 84
4.5.8.1 General . 84
4.5.8.2 Tracking of IM CN subsystem functional entities generating charging information . 84
4.5.8.3 Tracking of applications generating charging information . 85
4.6 Support of local service numbers . 85
4.7 Emergency service . 85
4.7.1 Introduction. 85
4.7.2 Emergency calls generated by a UE . 85
4.7.3 Emergency calls generated by an AS . 86
4.7.4 Emergency calls received from an enterprise network . 86
4.7.5 Location in emergency calls . 86
4.7.6 eCall type of emergency service . 87
4.8 Tracing of signalling . 87
4.8.1 General . 87
4.8.2 Trace depth . 87
4.9 Overlap signalling . 88
4.9.1 General . 88
4.9.2 Overlap signalling methods . 88
4.9.2.1 In-dialog method . 88
4.9.2.1.1 General . 88
4.9.2.2 Multiple-INVITE method . 88
4.9.2.2.1 General . 88
4.9.3 Routeing impacts . 88
4.9.3.1 General . 88
4.9.3.2 Deterministic routeing . 88
4.9.3.3 Digit collection . 89
4.10 Dialog correlation for IM CN subsystems . 89
4.10.1 General . 89
4.10.2 CONF usage. 89
4.11 Priority mechanisms . 89
4.12 Overload control . 91
4.13 II-NNI traversal scenario . 91
4.13.1 General . 91
4.13.2 Identifying the II-NNI traversal scenario . 92
4.13.3 Security aspects . 92
4.14 Restoration procedures . 92
4.14.1 General . 92
4.14.2 P-CSCF restoration procedures . 93
4.14.3 S-CSCF restoration procedures . 93
4.15 Resource sharing . 93
4.16 Priority sharing . 94
4.17 3GPP PS data off . 94
4.18 Dynamic Service Interaction . 95
5 Application usage of SIP . 95
5.1 Procedures at the UE . 95
5.1.0 General . 95
5.1.1 Registration and authentication. 95
5.1.1.1 General . 95
5.1.1.1A Parameters contained in the ISIM . 96
5.1.1.1B Parameters provisioned to a UE without ISIM or USIM . 96
5.1.1.1B.1 Parameters provisioned in the IMC . 96
5.1.1.1B.2 Parameters when UE does not contain ISIM, USIM or IMC . 97
5.1.1.2 Initial registration . 97
5.1.1.2.1 General . 97
5.1.1.2.2 Initial registration using IMS AKA . 102
5.1.1.2.3 Initial registration using SIP digest without TLS . 103
5.1.1.2.4 Initial registration using SIP digest with TLS . 104
5.1.1.2.5 Initial registration using NASS-IMS bundled authentication . 104
5.1.1.2.6 Initial registration using GPRS-IMS-Bundled authentication . 105
5.1.1.3 Subscription to the registration-state event package . 105
5.1.1.3A Void. 106
ETSI

---------------------- Page: 5 ----------------------
3GPP TS 24.229 version 15.9.0 Release 15 5 ETSI TS 124 229 V15.9.0 (2020-01)
5.1.1.4 User-initiated reregistration and registration of an additional public user identity . 106
5.1.1.4.1 General . 106
5.1.1.4.2 IMS AKA as a security mechanism. 110
5.1.1.4.3 SIP digest without TLS as a security mechanism . 111
5.1.1.4.4 SIP digest with TLS as a security mechanism . 111
5.1.1.4.5 NASS-IMS bundled authentication as a security mechanism . 112
5.1.1.4.6 GPRS-IMS-Bundled authentication as a security mechanism . 112
5.1.1.5 Authentication . 113
5.1.1.5.1 IMS AKA - general . 113
5.1.1.5.2 Void . 114
5.1.1.5.3 IMS AKA abnormal cases . 114
5.1.1.5.4 SIP digest without TLS – general . 115
5.1.1.5.5 SIP digest without TLS – abnormal procedures . 115
5.1.1.5.6 SIP digest with TLS – general . 115
5.1.1.5.7 SIP digest with TLS – abnormal procedures . 116
5.1.1.5.8 NASS-IMS bundled authentication – general . 116
5.1.1.5.9 NASS-IMS bundled authentication – abnormal procedures . 116
5.1.1.5.10 GPRS-IMS-Bundled authentication – general . 116
5.1.1.5.11 GPRS-IMS-Bundled authentication – abnormal procedures . 116
5.1.1.5.12 Abnormal procedures for all security mechanisms . 116
5.1.1.5A Network-initiated re-authentication . 116
5.1.1.5B Change of IPv6 address due to privacy . 117
5.1.1.6 User-initiated deregistration . 118
5.1.1.6.1 General . 118
5.1.1.6.2 IMS AKA as a security mechanism. 120
5.1.1.6.3 SIP digest without TLS as a security mechanism . 120
5.1.1.6.4 SIP digest with TLS as a security mechanism . 121
5.1.1.6.5 NASS-IMS bundled authentication as a security mechanism . 121
5.1.1.6.6 GPRS-IMS-Bundled authentication as a security mechanism . 121
5.1.1.7 Network-initiated deregistration . 122
5.1.2 Subscription and notification . 123
5.1.2.1 Notification about multiple registered public user identities . 123
5.1.2.2 General SUBSCRIBE requirements . 123
5.1.2A Generic procedures applicable to all methods excluding the REGISTER method . 123
5.1.2A.1 UE-originating case . 123
5.1.2A.1.1 General . 123
5.1.2A.1.2 Structure of Request-URI . 129
5.1.2A.1.3 UE without dial string processing capabilities . 129
5.1.2A.1.4 UE with dial string processing capabilities. 130
5.1.2A.1.5 Setting the "phone-context" tel URI parameter . 130
5.1.2A.1.5A Policy on local numbers . 131
5.1.2A.1.6 Abnormal cases . 132
5.1.2A.2 UE-terminating case . 134
5.1.3 Call initiation - UE-originating case . 136
5.1.3.1 Initial INVITE request .
...