ETSI TS 129 165 V10.22.0 (2020-01)

ETSI TS 129 165 V10.22.0 (2020-01)






TECHNICAL SPECIFICATION
Digital cellular telecommunications system (Phase 2+) (GSM);
Universal Mobile Telecommunications System (UMTS);
LTE;
5G;
Inter-IMS Network to Network Interface (NNI)
(3GPP TS 29.165 version 10.22.0 Release 10)

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3GPP TS 29.165 version 10.22.0 Release 10 1 ETSI TS 129 165 V10.22.0 (2020-01)



Reference
RTS/TSGC-0329165vam0
Keywords
5G,GSM,LTE,UMTS
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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.
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®
GSM and the GSM logo are trademarks registered and owned by the GSM Association.
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3GPP TS 29.165 version 10.22.0 Release 10 2 ETSI TS 129 165 V10.22.0 (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.
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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

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3GPP TS 29.165 version 10.22.0 Release 10 3 ETSI TS 129 165 V10.22.0 (2020-01)
Contents
Intellectual Property Rights . 2
Legal Notice . 2
Modal verbs terminology . 2
Foreword . 6
1 Scope . 7
2 References . 7
3 Definitions, symbols and abbreviations . 13
3.1 Definitions . 13
3.2 Symbols . 14
3.3 Abbreviations . 14
4 Overview . 15
5 Reference model for interconnection between IM CN subsystems . 15
5.1 General . 15
5.2 Functionalities performed by entities at the edge of the network . 16
5.2.1 Interconnection Border Control Function (IBCF). 16
5.2.2 Transition Gateway (TrGW) . 17
6 Control plane interconnection . 17
6.1 Definition of Inter-IMS Network to Network Interconnection. 17
6.1.1 SIP methods and header fields . 17
6.1.1.1 General . 17
6.1.1.2 SIP methods . 17
6.1.1.3 SIP header fields . 18
6.1.1.3.0 General . 18
6.1.1.3.1 Trust and no trust relationship . 18
6.1.1.3.2 Derivation of applicable SIP header fields from TS 24.229 [5] . 19
6.1.1.3.3 Applicability of SIP header fields on a roaming II-NNI . 20
6.1.1.3.4 Applicability of SIP header fields on a non-roaming II-NNI . 20
6.1.1.4 Notations of the codes . 20
6.1.1.5 Modes of signalling . 21
6.1.2 SDP protocol . 21
6.1.2.1 General . 21
6.1.3 Major capabilities . 21
6.1.4 SIP message bodies . 27
6.2 Control Plane Transport . 27
6.2.1 General . 27
7 User plane Interconnection . 28
7.1 Media and Codec . 28
7.2 User Plane Transport . 28
8 Numbering, Naming and Addressing . 29
8.1 Numbering, Naming and Addressing for SIP message . 29
8.2 Numbering, Naming and Addressing for SDP . 30
9 IP Version . 30
10 Security. 30
11 Charging . 30
11.1 General . 30
11.2 Inter-operator accounting . 30
11.3 Transfer of IP multimedia service tariff information. 31
12 Supplementary services associated with the IMS multimedia telephony communication service. 31
12.1 General . 31
ETSI

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3GPP TS 29.165 version 10.22.0 Release 10 4 ETSI TS 129 165 V10.22.0 (2020-01)
12.2 Malicious Communication IDentification (MCID) . 31
12.3 Originating Identification Presentation (OIP) and Originating Identification Restriction (OIR) . 32
12.4 Terminating Identification Presentation (TIP) and Terminating Identification Restriction (TIR) . 32
12.5 Anonymous Communication Rejection (ACR) . 33
12.6 Communication DIVersion (CDIV) . 33
12.7 Communication Waiting (CW) . 33
12.8 Communication HOLD (HOLD) . 33
12.9 Message Waiting Indication (MWI) . 34
12.10 Communication Barring (CB) . 34
12.10.1 Incoming Communication Barring (ICB) . 34
12.10.2 Outgoing Communication Barring (OCB) . 34
12.11 Completion of Communications to Busy Subscriber (CCBS) . 34
12.12 Completion of Communications by No Reply (CCNR) . 35
12.13 Explicit Communication Transfer (ECT) . 35
12.14 Customized Alerting Tone (CAT) . 36
12.15 Customized Ringing Signal (CRS) . 36
12.16 Closed User Group (CUG) . 36
12.17 Personal Network Management (PNM) . 37
12.18 Three-Party (3PTY) . 37
12.19 Conference (CONF) . 37
12.20 Flexible Alerting (FA) . 38
12.21 Announcements . 38
12.21.1 General . 38
12.21.2 Providing announcements during the establishment of a communication session . 38
12.21.3 Providing announcements during an established communication session . 38
12.21.4 Providing announcements when communication request is rejected . 38
12.22 Advice of Charge (AOC) . 39
12.23 Completion of Communications on Not Logged-in (CCNL) . 39
13 Interoperability of IMS Centralized Services (ICS) over II-NNI . 40
13.1 General . 40
13.2 IMS Centralized Services (ICS) . 40
14 Interoperability of IMS Service Continuity over II-NNI . 41
14.1 General . 41
14.2 Single Radio Voice Call Continuity (SRVCC) . 41
14.2.1 Basic SRVCC . 41
14.2.2 Transfer of calls in alerting phase . 41
14.2.3 Using the ATCF based architecture . 41
14.3 Inter UE Transfer (IUT) . 42
14.4 MSC server assisted mid-call feature . 42
15 Presence service . 43
15.0 General . 43
15.1 Subscription of presence information . 43
15.2 Watcher subscribing to Presence List . 43
15.3 Subscription to Watcher Information . 44
15.4 Subscription to state changes in XML documents . 44
15.5 Presence enhancements specified in Open Mobile Alliance (OMA) Release 1.1 . 44
15.5.1 General . 44
15.5.2 OMA subscription of presence information . 45
15.5.3 OMA watcher subscribing to Presence List . 45
15.5.4 OMA subscription to Watcher Information . 45
15.6 Presence enhancements specified in Open Mobile Alliance (OMA) Release 2.0 . 45
15.6.1 General . 45
15.6.2 OMA subscription of presence information . 45
15.6.3 OMA watcher subscribing to Presence List . 46
15.6.4 OMA subscription to Watcher Information . 46
15.6.5 Subscription to state changes in XML documents . 46
15.6.6 Void . 47
15.6.7 Void . 47
16 Messaging service . 47
ETSI

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3GPP TS 29.165 version 10.22.0 Release 10 5 ETSI TS 129 165 V10.22.0 (2020-01)
16.1 General . 47
16.2 Page-mode messaging . 47
16.4 Session-mode messaging . 47
16.5 Session-mode messaging conferences . 47
17 Optimal Media Routeing . 48
17.1 General . 48
17.2 OMR related SDP attributes . 48
17.3 IP realm names . 48
18 Inter-UE transfer (IUT) . 48
18.1 General . 48
18.2 IUT without establishment of a collaborative session . 48
18.3 IUT using a collaborative session . 49
18.3.1 Collaborative session of participants of the same subscription . 49
18.3.2 Establishment of a collaborative session during session setup . 49
18.3.3 Assignment and transfer of control of a collaborative session . 50
18.3.4 Collaborative session of participants of different subscriptions . 50
18.4 Session replication / media replication . 50
18.4.1 Pull mode . 50
18.4.2 Push mode . 50
Annex A (informative): Summary of SIP header fields . 52
Annex B (informative): Dynamic view of SIP header fields within SIP messages . 55
B.1 Scope . 55
B.2 Methodology . 55
B.3 ACK method . 57
B.4 BYE method . 58
B.5 CANCEL method . 61
B.6 INFO method . 62
B.7 INVITE method . 67
B.8 MESSAGE method . 74
B.9 NOTIFY method . 80
B.10 OPTIONS method . 85
B.11 PRACK method . 91
B.12 PUBLISH method . . 94
B.13 REFER method . 100
B.14 REGISTER method . 106
B.15 SUBSCRIBE method . 110
B.16 UPDATE method . 117
Annex C: Change history . 121
History . 127

ETSI

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3GPP TS 29.165 version 10.22.0 Release 10 6 ETSI TS 129 165 V10.22.0 (2020-01)
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 29.165 version 10.22.0 Release 10 7 ETSI TS 129 165 V10.22.0 (2020-01)
1 Scope
The objective of this document is to address the Inter-IMS Network to Network Interface (II-NNI) consisting of Ici and
Izi reference points between IMS networks in order to support end-to-end service interoperability.
The present document will address the issues related to control plane signalling (3GPP usage of SIP and SDP protocols,
required SIP header fields) as well as other interconnecting aspects like security, numbering/naming/addressing and
user plane issues as transport protocol, media and codecs actually covered in a widespread set of 3GPP specifications. A
profiling of the Inter-IMS Network to Network Interface (II-NNI) is also provided.
Charging aspects will be addressed as far as SIP signalling is concerned.
2 References
The following docume
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