ETSI TS 102 660 V1.1.1 (2008-07)

Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); Signalling Requirements and Signalling Architecture for supporting the various location information protocols for Emergency Service on a NGN

DTS/TISPAN-03049-EMTEL

General Information

• Status: Published
• Publication Date: 24-Jul-2008
• Technical Committee: TISPAN 3 - TISPAN Protocols
• Current Stage: 12 - Completion
• Due Date: 18-Aug-2008
• Completion Date: 25-Jul-2008

Standards Content (Sample)

ETSI TS 102 660 V1.1.1 (2008-07)
Technical Specification


Telecommunications and Internet converged Services and
Protocols for Advanced Networking (TISPAN);
Signalling Requirements and Signalling Architecture for
supporting the various location information protocols for
Emergency Service on a NGN

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2 ETSI TS 102 660 V1.1.1 (2008-07)



Reference
DTS/TISPAN-03049-EMTEL
Keywords
Emergency, location, service
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3 ETSI TS 102 660 V1.1.1 (2008-07)
Contents
Intellectual Property Rights.4
Foreword.4
Introduction .4
1 Scope.6
2 References.6
2.1 Normative references.6
2.2 Informative references.7
3 Definitions and abbreviations.7
3.1 Definitions.7
3.2 Abbreviations.8
4 Requirements for Europe.8
4.1 Information Content.9
4.2 Information Format.9
4.3 Protocol Support.9
4.4 Additional Features .9
4.5 TISPAN Architecture.10
5 Recommendations.10
5.1 Recommended Solution.10
5.2 For and against the recommended solution .10
5.2.1 Introduction to the solution.10
5.2.2 In Favour of the recommended solution .11
5.2.3 Against the recommended solution.11
5.2.4 Consideration of Alternatives.11
5.2.5 Comparison.11
History .12

ETSI

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4 ETSI TS 102 660 V1.1.1 (2008-07)
Intellectual Property Rights
IPRs essential or potentially essential to the present document 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 (http://webapp.etsi.org/IPR/home.asp).
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.
Foreword
This Technical Specification (TS) has been produced by ETSI Technical Committee Telecommunications and Internet
converged Services and Protocols for Advanced Networking (TISPAN).
Introduction
The present document has been produced by an ETSI STF co-funded by EC/EFTA to examine the work of various
Standards Development Organizations worldwide in developing and implementing protocols for the transmission of
location information over telecommunications networks for use in establishing the location of users of the emergency
calling facilities. In order to effectively deliver emergency services to the location of a reported incident, it is essential
for the emergency responders to have timely and accurate information that enables them to correctly identify the
location of the incident.
The ability to initiate an emergency communication to summon help when needed is a right of all citizens, and this
ability should ideally be independent of the network and access technologies deployed or the physical abilities of the
citizen.
The rights of individual users to privacy shall be adhered to according the European regulation and it is therefore
essential that all information derived from emergency calls shall only be used for management of the related incident. If
applied to non-emergency calls, the use of caller location information for commercial purposes may also be subject to
European or national regulation. In many circumstances, citizens reporting an incident requiring urgent assistance are
unable to provide the emergency service with accurate information about the location of the emergency. This may be
due either due to the nature of the emergency, the callers' lack of local knowledge, their disabilities or lack of linguistic
ability, etc. Young children or cognitively impaired people may not have the language skills to explain their location,
speech and/or hearing impaired users may not be able to use voice terminals, visually impaired or otherwise disabled
people may not be able to use text terminals, elderly or confused people may not be able to use any form of terminal,
etc. For these significantly large categories of users the successful outcome of an emergency call could make the
difference between life and death. It is therefore essential for the emergency responders to be provided with accurate
location information via an automated process based on the communications network being used by the caller.
Implementation of caller location systems is also likely to result in a welcome positive impact on the reduction of
malicious calls made by criminal or anti-social persons when they realize that the automatic provision of their location
information to the emergency services could enable their almost instant apprehension.
The present document should be read in conjunction with TS 102 650 [1] which reports on an Analysis of Location
Information Standards Produced by Various Standards Development Organizations (SDOs). The object of this analysis
was to determine what, if any, standards existed and had been adopted for the determination of caller location, in order
to assist in the response to emergency calls.
ETSI

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5 ETSI TS 102 660 V1.1.1 (2008-07)
The above text is intended to set the scene in which this work was undertaken and therefore concentrates on the
background information and on the ongoing activities by the various standards bodies in different regions. It should be
borne in mind that the document is intended to be focussed on what EC/EFTA wanted from their contract, essentially to
understand what the work is and what needs to be done. It is for TISPAN to do the in depth analysis and produce the
detailed technical recommendations.
NOTE: In the present document all references implying that 911 is the common emergency calling number are
used only to identify pre-existing work and as part of the titles of other documents. The mandated
common European emergency number is 112 with many countries also operating national numbers in
parallel.

ETSI

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6 ETSI TS 102 660 V1.1.1 (2008-07)
1 Scope
The present document makes recommendations on the standards to be used for the acquisition and conveyance of
location information associated with emergency calls. These are largely derived from the analysis of the outputs of
various ETSI work groups and other worldwide standards bodies documented in TS 102 650[1]. The recommendations
are produced for TISPAN WG3 so that interworking and integration between various networks can be accomplished for
the support of Emergency Communications on a NGN.
The document makes recommendations for the development of standards based on existing solutions but with
substantial additions to reflect the needs of a user-base having a wider geographical profile than that of the base
standard.
2 References
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• Non-specific reference may be made only to a complete document or a part thereof and only in the following
cases:
- if it is accepted that it will be possible to use all future changes of the referenced document for the
purposes of the referring document;
- for informative references.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
For online referenced documents, information sufficient to identify and locate the source shall be provided. Preferably,
the primary source of the referenced document should be cited, in order to ensure traceability. Furthermore, the
reference should, as far as possible, remain valid for the expected life of the document. The reference shall include the
method of access to the referenced document and the full network address, with the same punctuation and use of upper
case and lower case letters.
NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee
their long term validity.
2.1 Normative references
The following referenced documents are indispensable for the application of the present document. For dated
references, only the edition cited applies. For non-specific references, the latest edition of the referenced document
(including any amendments) applies.
[1] ETSI TS 102 650: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); Analysis of Location Information Standards produced by
various SDOs".
[2] ETSI TS 123 167: "Universal Mobile Telecommunications System (UMTS); IP Multimedia
Subsystem (IMS) emergency sessions (3GPP TS 23.167)".
[3] NENA (i2): "Interim VoIP Architecture for Enhanced 9-1-1 Services (i2)" which may be
downloaded from http://www.nena.org/media/File/NENA-08-001-V1-12-06-05-1.pdf .
[4] NENA (i3): "Functional and Interface 3 Standards for 4 Next Generation 9-1-1 Version 1.0 (i3)"
which may be downloaded from http://www.nena.org/media/File/08-751-20060928.pdf .
ETSI

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7 ETSI TS 102 660 V1.1.1 (2008-07)
2.2 Informative references
The following referenced documents are not essential to the use of the present document but they assist the user with
regard to a particular subject area. For non-specific references, the latest version of the referenced document (including
any amendments) applies.
Not applicable.
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following definitions apply:
access network: portion of the Telecommunications Network that provides access to the switching function and
terminates the User Access signalling
emergency: urgent need for assistance or relief
emergency call: call from a user to an emergency call centre, PSAP or similar agency charged with routing calls to the
relevant emergency response organization
emergency call facilities: mechanisms provided by public or private communications networks, emergency telephone
stanchions/boxes, fire alarms, etc. the use of which enables emergency calls to be made
emergency call service: mechanism by which a caller is given a fast and easy means of giving information about an
emergency situation to the appropriate emergency organization
emergency caller: user who calls an emergency service by making an emergency call
emergency control centre: facilities used by emergency organizations used to accept and handle emergency calls
NOTE: A PSAP forwards emergency calls to the emergency control centres.
emergency number: special short code or number which is used to provide callers with immediate access to the PSAP
to request assistance from the emergency services
emergency response organization: police, fire, emergency medical and similar services
emergency service: service that provides immediate and rapid assistance in situations where there is a direct risk to life
or limb, individual or public health or safety, to private or public property, or the environment but not necessar
...