ETSI TS 103 683 V2.1.1 (2023-02)

Mobile Standards Group (MSG); Testing; Next Generation eCall High Level Application Protocol (HLAP) Interoperability Testing

RTS/MSG-001132

General Information

• Status: Not Published
• Technical Committee: MSG - Mobile Standards Group
• Current Stage: 12 - Completion
• Due Date: 09-Mar-2023
• Completion Date: 20-Feb-2023

Standards Content (Sample)

ETSI TS 103 683 V2.1.1 (2023-02)






TECHNICAL SPECIFICATION
Mobile Standards Group (MSG);
Testing;
Next Generation eCall High Level Application Protocol (HLAP)
Interoperability Testing



---------------------- Page: 1 ----------------------
2 ETSI TS 103 683 V2.1.1 (2023-02)

Reference
RTS/MSG-001132
Keywords
eCall, interoperability, testing

ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: [phone]  Fax: [phone]

Siret N° 348 623 562 00017 - APE 7112B
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° w061004871

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
If you find a security vulnerability in the present document, please report it through our
Coordinated Vulnerability Disclosure Program:
https://www.etsi.org/standards/coordinated-vulnerability-disclosure
Notice of disclaimer & limitation of liability
The information provided in the present deliverable is directed solely to professionals who have the appropriate degree of
experience to understand and interpret its content in accordance with generally accepted engineering or
other professional standard and applicable regulations.
No recommendation as to products and services or vendors is made or should be implied.
No representation or warranty is made that this deliverable is technically accurate or sufficient or conforms to any law
rule and/or regulation and further, no representation or warranty is made of merchantability or fitness
and/or governmental
for any particular purpose or against infringement of intellectual property rights.
In no event shall ETSI be held liable for loss of profits or any other incidental or consequential damages.

Any software contained in this deliverable is provided "AS IS" with no warranties, express or implied, including but not
limited to, the warranties of merchantability, fitness for a particular purpose and non-infringement of intellectual property
rights and ETSI shall not be held liable in any event for any damages whatsoever (including, without limitation, damages
for loss of profits, business interruption, loss of information, or any other pecuniary loss) arising out of or related to the use
of or inability to use the software.
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 2023.
All rights reserved.

ETSI

---------------------- Page: 2 ----------------------
3 ETSI TS 103 683 V2.1.1 (2023-02)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 5
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 7
3 Definition of terms, symbols and abbreviations . 7
3.1 Terms . 7
3.2 Symbols . 8
3.3 Abbreviations . 8
4 Conventions . 9
4.1 Interoperability test process . 9
4.1.1 Principles . 9
4.1.2 The test description proforma . 9
4.1.3 Interoperable Functions Statement . 10
4.2 Tooling . 11
4.3 Test Description naming convention . 11
4.4 Test Summary . 11
4.5 Overview of Related IVS Tests . 13
5 Test Bed Architecture . 13
5.1 Test site layout . 13
5.2 NG eCall HLAP flow diagram . 15
6 Test Configurations . 17
6.0 Introduction . 17
6.1 Home Interoperability Test Configuration . 17
6.2 Home Interoperability Test Configuration with fallback to legacy eCall . 18
6.3 Visited Interoperability Test Configuration . 18
6.4 Multiple IVS Interoperability Test Configuration . 19
6.5 Home Interoperability Test Configuration rerouting to another PSAP . 19
6.6 Home Interoperability Test Configuration without VoIMS support . 19
6.7 Home Interoperability Test Configuration with ESInet . 20
6.8 Visited Interoperability Test Configuration with ESInet . 20
6.9 Home Interoperability Test Configuration with TPSP . 20
6.10 Default pre-test conditions . 21
6.11 Interoperable Functions Statement (IFS) . 22
7 NG eCall test scenarios/descriptions . 23
7.0 Introduction . 23
7.1 Basic test scenarios . 23
7.1.1 Initiation of manual eCall . 23
7.1.2 Initiation of automatic eCall . 24
7.1.3 Initiation of test eCall . 24
7.1.4 MSD transfer to PSAP supporting IMS eCall. 25
7.1.5 MSD transfer to PSAP supporting IMS eCall in a roaming scenario . 25
7.1.6 PSAP initiated callback to IVS . 26
7.1.7 PSAP initiated call clear-down . 26
7.1.8 IVS initiated call clear-down not allo wed . 27
7.1.9 Verification of audio interfaces of IVS and PSAP . 27
7.1.10 MSD update on request from PSAP . 28
7.1.11 Void . 28
7.1.12 Void . 28
7.1.13 Format of encoded and decoded MSD in accordance with EN 15722:2015 . 28
ETSI

---------------------- Page: 3 ----------------------
4 ETSI TS 103 683 V2.1.1 (2023-02)
7.1.14 Void . 29
7.1.15 Negative acknowledgement for the initial MSD . 29
7.1.16 Format of encoded and decoded MSD in accordance with EN 15722:2020 . 30
7.2 Advanced test scenarios . 31
7.2.1 MSD transfer to PSAP supporting IMS eCall over IPv4 . 31
7.2.2 MSD transfer to PSAP supporting IMS eCall over IPv6 . 31
7.2.3 Void . 31
7.2.4 MSD transfer to PSAP not supporting IMS eCall . 32
7.2.5 IMS eCall establishment with IMS emergency registration . 34
7.2.6 IMS eCall establishment without IMS emergency registration . 36
7.2.7 IMS eCall establishment without IMS emergency registration GIBA supported . 36
7.2.8 MSD transfer via in-band modem after negative acknowledgement for the MSD . 37
7.2.9 MSD transfer via in-band modem after missing acknowledgement for the MSD . 38
7.2.10 MSD transfer via in-band modem after missing MSD in INVITE request . 39
7.2.11 MSD update during PSAP initiated callback . 40
7.3 Advanced IVS test scenarios . 43
7.3.1 Fallback to legacy eCall following busy during call setup . 43
7.3.2 Fallback to legacy eCall following unavailable response during call setup . 45
7.3.3 Fallback to legacy eCall following no-answer during call setup . 46
7.3.4 Dropped eCall after MSD has been acknowledged . 48
7.3.5 Dropped eCall before call has been established - reattempt to CS . 49
7.3.6 IVS configured for 'eCall only' service (restricted) . 50
7.3.7 eCall is attempted when no networks are available (limited service condition with forbidden PLMN
on SIM/USIM) . 50
7.3.8 MSD transfer to PSAP supporting IMS eCall via PLMN without VoIMS support . 51
7.3.9 Termination of manually triggered eCall by vehicle occupant . 51
7.3.10 Termination of automatically triggered eCall by vehicle occupant not allowed/not possible . 52
7.3.11 Ongoing eCall shall not be disconnected if new trigger is received . 52
7.3.12 No fallback to legacy eCall following busy during call setup . 53
7.3.13 No fallback to legacy eCall following unavailable response during call setup . 54
7.3.14 Dropped eCall after call has been established - reattempt to PS . 55
7.3.15 Dropped eCall before call has been established - reattempt to PS . 56
7.3.16 Test eCall is not attempted when no networks are available (limited service condition with forbidden
PLMN on SIM/USIM) . 56
7.3.17 Reattempt of eCall following no-answer during call setup . 57
7.4 Advanced PSAP test scenarios . 58
7.4.1 PSAP handling of more than one eCall simultaneously . 58
7.4.2 PSAP correct MSD additional data decoding . 58
7.4.3 Rerouting to another PSAP/emergency control centre . 59
7.4.4 PSAP operator user interface . 59
7.4.5 Invalid MSD . 60
7.5 Advanced Tests for TPS . 60
7.5.1 TPSP and rerouting to national PSAP. 60
7.5.2 Conference call between TPS IVS, TPSP and national PSAP . 61
Annex A (informative): Source code of MSC figures . 62
A.1 Overview . 62
History . 63


ETSI

---------------------- Page: 4 ----------------------
5 ETSI TS 103 683 V2.1.1 (2023-02)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The declarations
pertaining to these essential IPRs, if any, are 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 Directives including the ETSI IPR Policy, no investigation regarding the essentiality of IPRs,
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.
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.
Foreword
This Technical Specification (TS) has been produced by ETSI Technical Committee Mobile Standards Group (MSG).
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: 5 ----------------------
6 ETSI TS 103 683 V2.1.1 (2023-02)
1 Scope
The present document defines Interoperability Test Descriptions for the NG eCall High Level Application Protocol
(HLAP).
2 References
2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
https://docbox.etsi.org/Reference.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
[1] ETSI TS 124 229 (V15.13.0): "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 15.13.0 Release 15)".
[2] ETSI TS 123 167 (V15.7.0): "Universal Mobile Telecommunications System (UMTS); LTE; IP
Multimedia Subsystem (IMS) emergency sessions (3GPP TS 23.167 version 15.7.0 Release 15)".
[3] ETSI TS 123 228 (V15.5.0): "Digital cellular telecommunications system (Phase 2+) (GSM);
Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS);
Stage 2 (3GPP TS 23.228 version 15.5.0 Release 15)".
[4] TS 17184:2022: "Intelligent transport systems - eSafety - eCall High level application Protocols
(HLAP) using IMS packet switched networks", produced by CEN.
[5] EENA Technical Committee Document: "Next Generation eCall".
[6] ETSI TS 123 401 (V15.12.0): "LTE; General Packet Radio Service (GPRS) enhancements for
Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access (3GPP TS 23.401
version 15.12.0 Release 15)".
[7] EN 16072:2022: "Intelligent transport systems - eSafety - Pan European eCall - Operating
requirements", produced by CEN.
[8] IETF RFC 8147: "Next-Generation Pan-European eCall".
[9] ETSI TS 103 428 (V1.2.2): "Mobile Standards Group (MSG); eCall HLAP Interoperability
Testing".
[10] EN 15722:2015: "Intelligent transport systems - ESafety - Ecall minimum set of data", produced
by CEN, withdrawn.
[11] ETSI TS 122 101 (V15.7.0): "Universal Mobile Telecommunications System (UMTS); LTE;
Service aspects; Service principles (3GPP TS 22.101 version 15.7.0 Release 15)".
[12] EN 15722:2020: "Intelligent transport systems - ESafety - Ecall minimum set of data", produced
by CEN.
[13] prEN 17905:2022: "Intelligent transport systems - eSafety - eCall HLAP in hybrid Circuit
Switched/Packet Switched network environments", produced by CEN.
ETSI

---------------------- Page: 6 ----------------------
7 ETSI TS 103 683 V2.1.1 (2023-02)
[14] EN 16102:2011: "Intelligent transport systems - ECall - Operating requirements for third party
support", produced by CEN.
[15] ETSI TS 103 479 (V1.1.1): "Emergency Communications (EMTEL); Core elements for network
independent access to emergency services".
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] ETSI ETR 266: "Methods for Testing and Specification (MTS); Test Purpose style guide".
[i.2] EN 16062:2022: "Intelligent Transport Systems - eSafety - eCall - High Level Application
Requirements (HLAP)", produced by CEN.
[i.3] ETSI EG 202 798 (V1.1.1): "Intelligent Transport Systems (ITS); Testing; Framework for
conformance and interoperability testing".
[i.4] PlantUML: "PlantUML utility".
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:
base specification: specification of a protocol, telecommunication service, interface, abstract syntax, encoding rules, or
information object
eCall: manually or automatically initiated emergency call, from a vehicle, supplemented with a Minimum Set of
emergency related Data (MSD), as defined under the EU Commission's eSafety initiative
eCall Over IMS support (ECL): As indicated by the eCall support indicator defined in ETSI TS 123 401 [6].
implementation: instance of the reference specification for which conformity to that reference specification is claimed
IMS eCall: eCall deployed using IMS emergency call in 3GPP Release-14, instead of in-band modem and circuit
switched 112
NOTE: This term is taken from EENA Technical Committee Document [5].
IMS Emergency Service support (EMS): IMS Emergency Services supported as indicated by Emergency Service
Support indicator as defined in ETSI TS 123 401 [6].
in-band modem eCall: eCall deployed using in-band modem and circuit switched 112 according to
EN 16062:2022 [i.2] and EN 16072:2022 [7]
NOTE: This term is based on definition in EENA Technical Committee Document [5].
ETSI

---------------------- Page: 7 ----------------------
8 ETSI TS 103 683 V2.1.1 (2023-02)
IVS configured for eCall only service (restricted): eCall capable IVS that is not subscribed to other non-emergency
services
NOTE: The IVS is not permitted to register on a PLMN except for the purpose of making an eCall, or a
test/reconfiguration call to a designated non-emergency number, in accordance with ETSI
TS 122 101 [11]. Following power-up the IVS may perform a PLMN search and maintain a list of
available networks upon which to register, when an eCall or test/reconfiguration call is activated.
Following an eCall or test/reconfiguration call, the IVS de-registers from the serving network within
12 hours.
IVS configured for eCall and other services (unrestricted): eCall capable IVS that has valid subscriptions to access
other non-emergency services
NOTE: The IVS may register on a PLMN at any time and may remain registered on a serving network
indefinitely.
Minimum Set of Data (MSD): data component of an eCall sent from a vehicle to a Public Safety Answering Point or
other designated emergency call centre
NOTE: The MSD has a maximum size of 140 bytes and includes, for example, vehicle identity, location
information and time-stamp, as defined in EN 15722:2015 [10].
Next Generation eCall (NG eCall): based on IMS eCall and offering data, multimedia and two-way data
NOTE: This term is based on the definition in EENA Technical Committee Document [5].
Plugtests: testing events, similar to a plugfest, developed and hosted by ETSI where the participants can test the
interoperability or the conformance of their implementations
PSAP eCall Modem-server: PSAP equipment used to receive, validate and acknowledge the MSD sent from an IVS,
to manage the voice call transfer to the PSAP operator and to facilitate callback to the vehicle
NOTE: The eCall modem-server may also support other functions.
reference specification: standard which provides a base specification, or a set of base specifications, or a profile, or a
set of profiles, and for conformance to which the ICS proforma and test specifications are written
VoIMS: Voice over IMS over PS sessions support as indicated by IMS Voice over PS session supported indication
as defined in ETSI TS 123 401 [6]
3.2 Symbols
Void.
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
3GPP Third Generation Partnership Project
ACK ACKnowledgement
CEN Comité Européen de Normalisation
CFG ConFiGuration
CS Circuit Switched
CSCF Call Session Control Function
ECL eCall Over IMS support
E-CSCF Emergency CSCF
EMS IMS Emergency Services
ESInet Emergency Services IP network
ESRP Emergency Service Routing Proxy
ETR ETSI Technical Report
ETSI European Telecommunications Standards Institute
EU European Union
EUT Equipment Under Test
ETSI

---------------------- Page: 8 ----------------------
9 ETSI TS 103 683 V2.1.1 (2023-02)
E-UTRAN Enhanced UMTS Terrestrial Radio Access Network
GIBA GPRS-IMS-Bundled-Authentication
GSM Global System of Mobile telecommunications
HLAP High Level Application Protocol
HMI Human Machine I
...