ETSI TS 134 229-2 V15.2.0 (2020-01)

Universal Mobile Telecommunications System (UMTS); LTE; Internet Protocol (IP) multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); User Equipment (UE) conformance specification; Part 2: Implementation Conformance Statement (ICS) specification (3GPP TS 34.229-2 version 15.2.0 Release 15)

RTS/TSGR-0534229-2vf20

General Information

• Status: Published
• Publication Date: 16-Jan-2020
• Technical Committee: 3GPP RAN 5 - Mobile Terminal Conformance Testing (formely T1)
• Current Stage: 12 - Completion
• Completion Date: 17-Jan-2020

Standards Content (Sample)

ETSI TS 134 229-2 V15.2.0 (2020-01)






TECHNICAL SPECIFICATION
Universal Mobile Telecommunications System (UMTS);
LTE;
Internet Protocol (IP) multimedia call control protocol based on
Session Initiation Protocol (SIP)
and Session Description Protocol (SDP);
User Equipment (UE) conformance specification;
Part 2: Implementation Conformance Statement (ICS)
specification
(3GPP TS 34.229-2 version 15.2.0 Release 15)

---------------------- Page: 1 ----------------------
3GPP TS 34.229-2 version 15.2.0 Release 15 1 ETSI TS 134 229-2 V15.2.0 (2020-01)



Reference
RTS/TSGR-0534229-2vf20
Keywords
LTE,UMTS
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: [phone]  Fax: [phone]

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 34.229-2 version 15.2.0 Release 15 2 ETSI TS 134 229-2 V15.2.0 (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 34.229-2 version 15.2.0 Release 15 3 ETSI TS 134 229-2 V15.2.0 (2020-01)
Contents
Intellectual Property Rights . 2
Legal Notice . 2
Modal verbs terminology . 2
Foreword . 4
Introduction . 4
1 Scope . 5
2 References . 5
3 Definitions and abbreviations . 8
3.1 Definitions . 8
3.2 Abbreviations . 9
4 Recommended test case applicability . 9
rd
Annex A (normative): ICS proforma for 3 Generation User Equipment supporting IP
multimedia call control based on SIP and SDP . 33
A.1 Guidance for completing the ICS proforma . 33
A.1.1 Purposes and structure . 33
A.1.2 Abbreviations and conventions . 33
A.1.3 Instructions for completing the ICS proforma . 34
A.2 Identification of the User Equipment . 35
A.2.1 Date of the statement . 35
A.2.2 User Equipment Under Test (UEUT) identification . 35
A.2.3 Product supplier . 35
A.2.4 Client . 36
A.2.5 ICS contact person . 36
A.3 Identification of the protocol . 37
A.4 ICS proforma tables. 37
A.4.1 Roles . 37
A.4.2 ICS related to SIP . 37
A.4.2.1 Major capabilities . 37
A.4.2.2 Void. 38
A.4.2.3 Security . 38
A.4.2.4 Addressing . 39
A.4.2.5 SIP Compression . 39
A.4.3 Void . 40
A.4.4 Void . 40
A.4.5 Additional information . 40
A.4.6 Additional information for IPv4 . 43
A.4.7 MTSI media . 44
A.4.8 MTSI supplementary services. 45
A.4.9 MTSI media change . 47
A.4.10 UE Implementation Types . 47
A.4.11 Special Conformance Testing Functions . 47
A.4.12 NG.102 . 48
Annex B (informative): Change history . 49
History . 58

ETSI

---------------------- Page: 4 ----------------------
3GPP TS 34.229-2 version 15.2.0 Release 15 4 ETSI TS 134 229-2 V15.2.0 (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.
Introduction
To evaluate conformance of a particular implementation, it is necessary to have a statement of which capabilities and
options have been implemented for a telecommunication specification. Such a statement is called an Implementation
Conformance Statement (ICS).
rd
The present document is 2 part of a multi-part conformance test specification for UE and is valid for 3GPP Release 5.
The specification contains the UE IMS CC capability and the applicability of the UE IMS CC conformance test cases.
3GPP TS 34.229-1 [5]: Internet Protocol (IP) multimedia call control protocol based on Session Initiation
Protocol (SIP) and Session Description Protocol (SDP); User Equipment (UE) conformance specification; Part 1:
Protocol conformance specification.
3GPP TS 34.229-2 (the present document): "Internet Protocol (IP) multimedia call control protocol based
on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); User Equipment (UE)
conformance specification; Part 2: Implementation Conformance Statement (ICS) proforma
specification" - current document.
3GPP TS 34.229-3 [6]: "Internet Protocol (IP) multimedia call control protocol based on Session Initiation
Protocol (SIP) and Session Description Protocol (SDP); User Equipment (UE) conformance specification; Part 3:
Abstract Test Suites (ATS)".
Note: For conformance testing of the UTRAN requirements refer to 3GPP TS 34.123 Parts 1 to 3 [2] [3] [4].
ETSI

---------------------- Page: 5 ----------------------
3GPP TS 34.229-2 version 15.2.0 Release 15 5 ETSI TS 134 229-2 V15.2.0 (2020-01)
1 Scope
rd
The present document provides the Implementation Conformance Statement (ICS) proforma for 3 Generation User
Equipment (UE) supporting the Internet Protocol (IP) multimedia call control protocol based on Session Initiation
Protocol (SIP) and Session Description Protocol (SDP), in compliance with the relevant requirements, and in
accordance with the relevant guidance given in ISO/IEC 9646-7 [8] and ETS 300 406 [9].
The present document also specifies a recommended applicability statement for the test cases included in TS 34.229-1
[5]. These applicability statements are based on the features implemented in the UE.
The present document is valid for UE implemented according to 3GPP releases starting from Release 5 up to the
Release indicated on the cover page of the present document.
Also, it is generally assumed that an IMS capable UE is compliant to GSMA PRD IR.92 [83] and GSMA PRD IR.94
[75];any update of requirements in these GSMA PRD documents, which are relevant to the present document will be
handled on a case by case basis, with due consideration given for grace period to be granted for the UE to comply to
any updated requirements.
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 unless the context in which the reference is made suggests a different Release is
relevant (information on the applicable release in a particular context can be found in e.g. test case title,
description or applicability, message description or content).
[1] 3GPP TR 21.905: "Vocabulary for 3GPP Specifications".
[2] 3GPP TS 34.123-1: "User Equipment (UE) conformance specification; Part 1: Protocol
conformance specification".
[3] 3GPP TS 34.123-2: "User Equipment (UE) conformance specification; Part 2: Implementation
Conformance Statement (ICS) proforma specification".
[4] 3GPP TS 34.123-3: "User Equipment (UE) conformance specification; Part 3: Abstract Test Suites
(ATS)".
[5] 3GPP TS 34.229-1: "Internet Protocol (IP) multimedia call control protocol based on Session
Initiation Protocol (SIP) and Session Description Protocol (SDP); User Equipment (UE)
conformance specification; Part 1: Protocol conformance specification".
[6] 3GPP TS 34.229-3: "Internet Protocol (IP) multimedia call control protocol based on Session
Initiation Protocol (SIP) and Session Description Protocol (SDP); User Equipment (UE)
conformance specification; Part 3: Abstract Test Suites (ATS)".
[7] ISO/IEC 9646-1: "Information technology - Open systems interconnection - Conformance testing
methodology and framework - Part 1: General concepts".
[8] ISO/IEC 9646-7: "Information technology - Open systems interconnection - Conformance testing
methodology and framework - Part 7: Implementation Conformance Statements".
[9] ETSI ETS 300 406: "Methods for testing and Specification (MTS); Protocol and profile
conformance testing specifications; Standardization methodology".
ETSI

---------------------- Page: 6 ----------------------
3GPP TS 34.229-2 version 15.2.0 Release 15 6 ETSI TS 134 229-2 V15.2.0 (2020-01)
[10] 3GPP TS 24.229: "IP Multimedia Call Control Protocol based on Session Initiation Protocol (SIP)
and Session Description Protocol (SDP); Stage 3".
[11] Void.
[12] 3GPP TS 33.203: "Access security for IP-based services".
[13] 3GPP TS 23.221: "Architectural requirements".
[14] Void.
[15] RFC 3261: "SIP: Session Initiation Protocol".
[16] Void.
[17] 3GPP TS 24.247: "Messaging using the IP Multimedia (IM) Core Network (CN) subsystem; Stage
3".
[18] 3GPP TR 23.981: "Interworking aspects and migration scenarios for IPv4-based IP Multimedia
Subsystem (IMS) implementations".
[19] 3GPP TS 24.147: "Conferencing using the IP Multimedia (IM) Core Network (CN) subsystem;
Stage 3".
[20] Void.
[21] Void.
[22] Void.
[23] Void.
[24] Void.
[25] Void.
[26] RFC 3312: "Integration of Resource Management and Session Initiation Protocol (SIP)".
[27] RFC 3262: "Reliability of provisional responses in Session Initiation Protocol (SIP)".
[28] Void.
[29] Void.
[30] Void.
[31] Void.
[32] Void.
[33] Void.
[34] Void.
[35] Void.
[36] Void.
[37] Void.
[38] Void.
[39] Void.
[40] Void.
[41] Void.
[42] Void.
ETSI

---------------------- Page: 7 ----------------------
3GPP TS 34.229-2 version 15.2.0 Release 15 7 ETSI TS 134 229-2 V15.2.0 (2020-01)
[43] Void.
[44] Void.
[45] Void.
[46] Void.
[47] Void.
[48] Void.
[49] Void.
[50] Void.
[51] Void.
[52] Void.
[53] Void.
[54] Void.
[55] 3GPP TS 24.173: "IMS Multimedia Telephony Communication Service and supplementary
services; stage 3".
[56] 3GPP TS 26.114: "IP Multimedia Subsystem (IMS); Multimedia Telephony; Media handling and
interaction".
[57] Void.
[58] Void.
[59] Void.
[60] Void.
[61] Void.
[62] Void.
[63] 3GPP TS 33.222: “Generic Authentication Architecture (GAA); Access to network application
functions using Hypertext Transfer Protocol over Transport Layer Security (HTTPS)”.
[64] 3GPP TS 24.109: “Bootstrapping interface (Ub) and network application function interface (Ua);
Protocol details”.
[65] RFC 2617; “HTTP Authentication: Basic and Digest Access Authentication”.
[66] 3GPP TS 24.341: "Support of SMS over IP networks; Stage 3".
[67] Void.
[68] 3GPP TS 24.604: “Communication Diversion (CDIV) using IP Multimedia (IM)”.
[69] 3GPP TS 24.615: "Communication Waiting (CW) using IP Multimedia (IM) Core Network (CN)
subsystem".
[70] 3GPP TS 36.101: “Evolved Universal Terrestrial Radio Access (E-UTRA); User Equipment (UE)
radio transmission and reception”.
[71] 3GPP TR 21.904: "UE capability requirements".
[72] Void.
[73] 3GPP TS 36.523-2: "User Equipment (UE) conformance specification; Part 2: Implementation
Conformance Statement (ICS)proforma specification".
ETSI

---------------------- Page: 8 ----------------------
3GPP TS 34.229-2 version 15.2.0 Release 15 8 ETSI TS 134 229-2 V15.2.0 (2020-01)
[74] 3GPP2 C.S0005-E: “Upper Layer (Layer 3) Signalling Standard for cdma2000 Spread Spectrum
Systems”.
[75] GSMA PRD IR.94: "IMS Profile for Conversational Video Service".
[76] 3GPP TS 23.167: "IP Multimedia Subsystem (IMS) emergency sessions".
[77] 3GPP TS 24.237: "IP Multimedia Subsystem (IMS) Service Continuity; Stage 3".
[78] 3GPP TS 34.109: "Terminal logical test interface; Special conformance testing functions".
[79] 3GPP TS 36.509: "Special conformance testing functions for User Equipment (UE)".
[80] Void.
[81] 3GPP TS 24.623: "Extensible Markup Language (XML) Configuration Access Protocol (XCAP)
over the Ut interface for Manipulating Supplementary Services".
[82] 3GPP TS 33.220: "Generic Authentication Architecture (GAA); Generic Bootstrapping
Architecture".
[83] GSMA PRD IR.92: "IMS Profile for Voice and SMS".
[84] GSMA PRD IR.51: "IMS Profile for Voice, Video and SMS over Wi-Fi".
[85] 3GPP TS 24.238: "Session Initiation Protocol (SIP) based user configuration; Stage3".
[86] IETF RFC 4028 (April 2005): "Session Timers in the Session Initiation Protocol (SIP)".
[87] GSMA PRD NG.108: "IMS Profile for Voice and SMS for UE category M1".[88] IETF RFC
8147 (May 2017): "Next-Generation Pan-European eCall".
[88] FFS
[89] GSMA PRD NG.102: "IMS Profile for Converged IP Communications".
[90] 3GPP TS 24.390: " Unstructured Supplementary Service Data (USSD) using IP Multimedia (IM)
Core Network (CN) subsystem IMS; Stage 3"
[91] 3GPP TS 38.101-1: "NR; User Equipment (UE) radio transmission and reception; Part 1: Range 1
Standalone"
[92] 3GPP TS 38.101-2: "NR; User Equipment (UE) radio transmission and reception; Part 2: Range 2
Standalone"
[93] 3GPP TS 38.508-2: "5GS; User Equipment (UE) conformance specification; Part 2: Common
Implementation Conformance Statement (ICS) proforma specification".
[94] 3GPP TS 23.040: "Technical realization of the Short Message Service (SMS)"

3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply, in addition to those in TR 21.905
[1]:
- terms defined in the relevant 3GPP core specifications (see normative references);
- terms defined in ISO/IEC 9646-1 [7] and in ISO/IEC 9646-7 [8].
In particular, the following terms defined in ISO/IEC 9646-1 [7] apply:
ETSI

---------------------- Page: 9 ----------------------
3GPP TS 34.229-2 version 15.2.0 Release 15 9 ETSI TS 134 229-2 V15.2.0 (2020-01)
Implementation Conformance Statement (ICS): statement made by the supplier of an implementation or system
claimed to conform to a given specification, stating which capabilities have been implemented
The ICS can take several forms: protocol ICS, profile ICS, profile specific ICS, information object ICS, etc.
ICS proforma: document, in the form of a questionnaire, which when completed for an implementation or system
becomes an ICS
3.2 Abbreviations
For the purposes of the present document, the abbreviations given in TR 21.905 [1] and the following apply. An
abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in
TR 21.905 [1].
ICS Implementation Conformance Statement
SCS System Conformance Statement
UEUT User Equipment Under Test
4 Recommended test case applicability
The applicability of each individual test is identified in the table 1. This is just a recommendation based on the purpose
for which the test case was written.
The applicability of every test is formally expressed by the use of Boolean expression that are based on parameters
(ICS) included in annex A of the present document.
Additional information related to the Test Case (TC), e.g. affecting its dynamic behaviour or its execution may be
provided as well.
The columns in table 1 have the following meaning:
Clause
The clause column indicates the clause number in TS 34.229-1 [5] that contains the test body.
Title
The title column describes the name of the test.
Release
The release column indicates the earliest release from which each testcase is applicable, except if otherwise stated of an
individual test case.
NOTE: For the IMS Emergency Service test cases, the 3GPP Release of UTRAN and GERAN is independent of
that indicated in the release column.
Applicability
The following notations are used for the applicability column:
R recommended - the test case is recommended
O optional – the test case is optional
N/A not applicable - in the given context, the test case is not recommended.
Ci conditional - the test is recommended ("R") or not ("N/A") depending on the support of other
items. "i" is an integer identifying an unique conditional status expression which is defined
immediately following the table. For nested conditional expressions, the syntax "IF . THEN (IF .
THEN . ELSE.) ELSE ." is used to avoid ambiguities.
ETSI

---------------------- Page: 10 ----------------------
3GPP TS 34.229-2 version 15.2.0 Release 15 10 ETSI TS 134 229-2 V15.2.0 (2020-01)
Comments
This column contains a verbal description of the condition included in the applicability column.
ETSI

---------------------- Page: 11 ----------------------
3GPP TS 34.229-2 version 15.2.0 Release 15 11 ETSI TS 134 229-2 V15.2.0 (2020-01)
Table 1: Applicability of tests
ETSI

---------------------- Page: 12 ----------------------
3GPP TS 34.229-2 version 15.2.0 Release 15 12 ETSI TS 134 229-2 V15.2.0 (2020-01)
Clause Title Release Applicability Comments
PDP Context Activation
6.2 General Purpose PDP Context Rel-8 C04 UE capable of being configured to
Establishment (UE Requests for a initiate Dedicated PDP Context
Dedicated PDP Context)
6.3 Dedicated PDP Context Establishment Rel-8 C04 UE capable of being configured to
initiate Dedicated PDP Context
P-CSCF Discovery
7.1 P-CSCF Discovery via PDP Context Rel-8 C05 UE capable of being configured to
initiate P-CSCF Discovery via PCO
7.2 P-CSCF Discovery via DHCP - IPv4 Rel-8 C06 UE supports IPv4 and capable of
being configured to initiate P-CSCF
Discovery via DHCPv4
7.3 P-CSCF Discovery via DHCP - IPv4 (UE Rel-8 C07 UE supports IPv4, supports P-CSCF
Requests P-CSCF discovery via PCO) Discovery via PCO and DHCPv4 and
capable of being configured to initiate
P-CSCF Discovery via PCO
7.4 P-CSCF Discovery by DHCP - IPv6 Rel-8 C08 UE capable of being configured to
initiate P-CSCF Discovery via
DHCPv6
7.5 P-CSCF Discovery by DHCP-IPv6 (UE Rel-8 C09 UE supports P-CSCF Discovery via
Requests P-CSCF discovery by PCO) PCO and DHCPv6 and capable of
being configured to initiate P-CSCF
Discovery via PCO
7.6 P-CSCF Discovery by DHCP - IPv6 (UE Rel-8 C10 UE supports P-CSCF Discovery via
does not Request P-CSCF discovery by PCO and DHCPv6 and capable of
PCO, SS includes P-CSCF Address(es) in being configured to initiate P-CSCF
PCO) Discovery via DHCPv6
7.7 Void
7.8 Void
7.9 Void
Registration
8.1 Initial registration Rel-8 C17 UE supports IMS security and E-UTRA
and not UE category M1
8.2 User Initiated Re-Registration Rel-8 C17 UE supports IMS security and E-UTRA
and not UE category M1
8.3 Mobile Initiated Deregistration Rel-8 C80 UE supports IMS security and IMS
deregistration and E-UTRA and not
UE category M1
8.4 Invalid Behaviour - 423 Interval Too Brief Rel-8 C17 UE supports IMS security and E-UTRA
and not UE category M1
8.5 Void
8.6 Void
8.7 Void
8.8 Void
8.9 Void
8.10 Initial registration using GIBA Rel-8 C18 UE supports GIBA only and E-UTRA
and not UE category M1
8.11 Initial registration using IMS AKA and GIBA Rel-8 C19 UE supports IMS security and GIBA
against a network with GIBA support only and E-UTRA and not UE category M1
8.12 User initiated re-registration using GIBA Rel-8 C18 UE supports GIBA only and E-UTRA
and not UE category M1
8.13 User initiated de-registration using GIBA Rel-8 C18 UE supports GIBA only and E-UTRA
and not UE category M1
8.14 Initial registration for three implicit Rel-8 C85 UE supports IMS security and Multiple
registration sets IMPU and E-UTRA and not UE
category M1
8.15 Refresh for ISIM parameters Rel-10 C17 UE supports IMS security and E-UTRA
and not UE category M1
8.16 User initiated re-registration- 423 Interval Rel-9 C17 UE supports IMS security and E-UTRA
Too Brief and not UE category M1
Authentication
9.1 Invalid Behaviour - MAC Parameter Invalid Rel-8 C17 UE supports IMS security and E-UTRA
and not UE category M1
9.2 Invalid Behaviour - SQN out of range Rel-8 C17 UE supports IMS security and E-UTRA
and not UE category M1
Subscription
10.1 Invalid Behaviour - 503 Service Unavailable Rel-8 C151 E-UTRA and not UE category M1
Notification
11.1 Network-initiated deregistration Rel-8 C151 E-UTRA and not UE category M1
11.2 Network initiated re-a
...