SIST EN 17184:2025/oprA1:2025

SLOVENSKI STANDARD
01-december-2025
Inteligentni transportni sistemi - e-Varnost - Visokonivojski aplikacijski protokoli
za e-Klic (HLAP) z uporabo IP multimedijskega podsistema (IMS) v paketno
preklopnih omrežjih - Dopolnilo A1
Intelligent transport systems - eSafety - eCall High level application protocols (HLAP)
using IP Multimedia Subsystem (IMS) over packet switched networks
Intelligente Verkehrssysteme - eSicherheit - Übergeordnete Anwendungsprotokolle
(HLAP) für eCall unter Verwendung von IPbasierten Multimedia-Subsystemen (IMS)
über paketvermittelte Netzwerke
Systèmes de transport intelligents - eSafety - eCall Protocoles d'application de haut
niveau (HLAP) utilisant les réseaux à commutation de paquets IMS (Internet système
multimédia)
Ta slovenski standard je istoveten z: EN 17184:2024/prA1
ICS:
03.220.01 Transport na splošno Transport in general
35.240.60 Uporabniške rešitve IT v IT applications in transport
prometu
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
EN 17184:2024
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA1
October 2025
ICS 35.240.60
English Version
Intelligent transport systems - eSafety - eCall High level
application protocols (HLAP) using IP Multimedia
Subsystem (IMS) over packet switched networks
Systèmes de transport intelligents - eSafety - eCall Intelligente Verkehrssysteme - eSicherheit -
Protocoles d'application de haut niveau (HLAP) Übergeordnete Anwendungsprotokolle (HLAP) für
utilisant les réseaux à commutation de paquets IMS eCall unter Verwendung von IPbasierten Multimedia-
(Internet système multimédia) Subsystemen (IMS) über paketvermittelte Netzwerke
This draft amendment is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 278.

This draft amendment A1, if approved, will modify the European Standard EN 17184:2024. If this draft becomes an amendment,
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of
this amendment into the relevant national standard without any alteration.

This draft amendment was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 17184:2024/prA1:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Modifications to Clause 2, “Normative references” . 4
2 Modifications to subclause 6.3, “eCall using IMS over Packet Switched networks” . 6
3 Modification to subclause 7.1.1, "General" . 7
4 Modifications to subclause 7.1.2, "Enabled IVS" . 7
5 Modifications to subclause 7.1.4, "eCall-only IVS" . 7
6 Modifications to subclause 7.1.5, "ECL: eCall using IMS support indicator" . 7
7 Modification to subclause 7.3.2, "Activation of a test eCall" . 8
8 Modifications to subclause 7.4.5, "Establishment of an eCall using IMS over packet
switched networks" . 8
9 Modification to subclause 7.4.7, "Manual termination of eCall by vehicle occupants before
trigger confirmation" . 8
10 Modifications to subclause 7.4.8, "Call rejection" . 8
11 Modification to subclause 7.4.9, "Call failure" . 9
12 Modification to subclause 7.6.3, "Unsuccessful receipt by the PSAP of initial MSD" . 9
13 Modification to subclause 7.7.3, "After session clear-down" . 9
14 Modification to subclause 7.11, "PSAP call-back" . 9
15 Modifications to the Bibliography . 10

European foreword
This document (EN 17184:2024/prA1:2025) has been prepared by Technical Committee CEN/TC 278
“Intelligent transport systems”, the secretariat of which is held by NEN.
This document is currently submitted to the CEN Enquiry.
1 Modifications to Clause 2, “Normative references”
Add the following reference:
“EN 16062, Intelligent transport systems - ESafety - eCall high level application requirements (HLAP) using
GSM/UMTS circuit switched networks”.
Replace “EN 16072:2022” with “EN 16072:2025” in Clause 2 and throughout the text.

Replace:
“ETSI TS 122 003, Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile
Telecommunications System (UMTS); LTE; Circuit Teleservices supported by a Public Land Mobile Network
(PLMN) (3GPP TS 22.003) [Release 16 or later]”
with:
“ETSI TS 122 003, Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile
Telecommunications System (UMTS); LTE; Circuit Teleservices supported by a Public Land Mobile Network
(PLMN) (3GPP TS 22.003) [Release 14 or later for eCall over 4G; Release 16 or later for eCall over 5G]”

Replace:
“ETSI TS 122 011, Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile
Telecommunications System (UMTS); LTE; Service accessibility (3GPP TS 22.011) [Release 16 or later]”
with:
“ETSI TS 122 011, Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile
Telecommunications System (UMTS); LTE; Service accessibility (3GPP TS 22.011) [Release 14 or later for
eCall over 4G; Release 16 or later for eCall over 5G]”

Replace:
“ETSI TS 122 071, Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile
Telecommunications System (UMTS); LTE; Location Services (LCS); Service description; Stage 1 (3GPP TS
22.071 [Release 16 or later]”
with:
“ETSI TS 122 071, Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile
Telecommunications System (UMTS); LTE; Location Services (LCS); Service description; Stage 1 (3GPP TS
22.071 [Release 14 or later for eCall over 4G; Release 16 or later for eCall over 5G]”

Replace:
“ETSI TS 122 101, Universal Mobile Telecommunications System (UMTS); LTE; Service aspects; Service
principles (3GPP TS 22.101) [Release 16 or later]”
with:
“ETSI TS 122 101, Universal Mobile Telecommunications System (UMTS); LTE; Service aspects; Service
principles (3GPP TS 22.101) [Release 14 or later for eCall over 4G; Release 16 or later for eCall over 5G]”

Replace:
“ETSI TS 123 122, Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile
Telecommunications System (UMTS); LTE; Non-Access-Stratum (NAS) functions related to Mobile Station
(MS) in idle mode (3GPP TS 23.122) [Release 16 or later]”
with:
“ETSI TS 123 122, Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile
Telecommunications System (UMTS); LTE; Non-Access-Stratum (NAS) functions related to Mobile Station
(MS) in idle mode (3GPP TS 23.122) [Release 14 or later for eCall over 4G; Release 16 or later for eCall
over 5G]”
Replace:
“ETSI TS 123 167, Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem
(IMS) emergency sessions (3GPP TS 23.167) [Release 16 or later]”
with:
“ETSI TS 123 167, Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem
(IMS) emergency sessions (3GPP TS 23.167) [Release 14 or later for eCall over 4G; Release 16 or later for
eCall over 5G]”
Replace:
“ETSI TS 123 216, Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile
Telecommunications System (UMTS); LTE; Single Radio Voice Call Continuity (SRVCC); Stage 2 (3GPP TS
23.216) [Release 16 or later]”
with:
“ETSI TS 123 216, Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile
Telecommunications System (UMTS); LTE; Single Radio Voice Call Continuity (SRVCC); Stage 2 (3GPP TS
23.216) [Release 14 or later for eCall over 4G; Release 16 or later for eCall over 5G]”

Replace:
“ETSI TS 123 401, LTE; General Packet Radio Service (GPRS) enhancements for Evolved Universal
Terrestrial Radio Access Network (E-UTRAN) access (3GPP TS 23.401) [Release 16 or later]”
with:
“ETSI TS 123 401, LTE; General Packet Radio Service (GPRS) enhancements for Evolved Universal
Terrestrial Radio Access Network (E-UTRAN) access (3GPP TS 23.401) [Release 14 or later]”

Replace:
“ETSI TS 124 229, 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) [Release 16 or later]”
with:
“ETSI TS 124 229, 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) [Release 14 or later for
eCall over 4G; Release 16 or later for eCall over 5G]”

Replace:
“ETSI TS 124 301, Universal Mobile Telecommunications System (UMTS); LTE; Non-Access-Stratum (NAS)
protocol for Evolved Packet System (EPS); Stage 3 (3GPP TS 24.301) [Release 16 or later]”
with:
“ETSI TS 124 301, Universal Mobile Telecommunications System (UMTS); LTE; Non-Access-Stratum (NAS)
protocol for Evolved Packet System (EPS); Stage 3 (3GPP TS 24.301) [Release 14 or later]”

Replace:
“ETSI TS 131 102, Universal Mobile Telecommunications System (UMTS); LTE; Characteristics of the
Universal Subscriber Identity Module (USIM) application (3GPP TS 31.102) [Release 16 or later]”
with:
“ETSI TS 131 102, Universal Mobile Telecommunications System (UMTS); LTE; Characteristics of the
Universal Subscriber Identity Module (USIM) application (3GPP TS 31.102) [Release 14 or later for eCall
over 4G; Release 16 or later for eCall over 5G]”

Replace:
“ETSI TS 133 203, Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile
Telecommunications System (UMTS); LTE; 3G security; Access security for IP-based services (3GPP TS
33.203) [Release 16 or later]”
with:
“ETSI TS 133 203, Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile
Telecommunications System (UMTS); LTE; 3G security; Access security for IP-based services (3GPP TS
33.203) [Release 14 or later for eCall over 4G; Release 16 or later for eCall over 5G]”

Replace:
“ETSI TS 136 331, LTE; Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC);
Protocol specification (3GPP TS 36.331) [Release 16 or later]”
with:
“ETSI TS 136 331, LTE; Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC);
Protocol specification (3GPP TS 36.331) [Release 14 or later]”
2 Modifications to subclause 6.3, “eCall using IMS over Packet Switched
networks”
th
In the 6 paragraph, delete “(see also B.2 for a summary of key relevant provisions)”.
st
In the penultimate paragraph, 1 list item, replace “termination” with “cancellation”.
3 Modification to subclause 7.1.1, "General"
Replace:
"The IVS responsible for the eCall system network access device (NAD) shall conform in all respects to
the applicable ETSI specifications and in particular to the requirements specified in ETSI TS 123 122,
ETSI TS 123 167, ETSI TS 123 401, ETSI TS 123 501, ETSI TS 124 229, ETSI TS 124 301, ETSI TS 124 501,
ETSI TS 136 331, ETSI TS 131 102, ETSI TS 123 216 and ETSI TS 138 331 and utilized as specified herein.”
with:
“The IVS responsible for the eCall system network access device (NAD) shall conform to the applicable
parts of the relevant ETSI specifications and in particular to the requirements specified in ETSI TS 123
122, ETSI TS 123 167, ETSI TS 123 401 (only applicable for 4G), ETSI TS 123 501 (only applicable for 5G),
ETSI TS 124 229, ETSI TS 124 301 (only applicable for 4G), ETSI TS 124 501 (only applicable for 5G), ETSI
TS 136 331
...