ETSI EN 301 160 V1.1.1 (1998-10)

Routeing of calls to European Telephony Numbering Space (ETNS) services

DEN/NA-021412

Usmerjanje klicev do storitev evropskega telefonskega številskega prostora (ETNS)

General Information

• Status: Published
• Publication Date: 11-Oct-1998
• Technical Committee: NA 2 - Numbering, Addressing, Routeing & Interworking
• Current Stage: 12 - Completion
• Due Date: 23-Oct-1998
• Completion Date: 12-Oct-1998
• Ref Project: SIST EN 301 160 V1.1.1:2005 - Routeing of calls to European Telephony Numbering Space (ETNS) services

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 301 160 V1.1.1:2005
01-april-2005
Usmerjanje klicev do storitev evropskega telefonskega številskega prostora
(ETNS)
Routeing of calls to European Telephony Numbering Space (ETNS) services
Ta slovenski standard je istoveten z: EN 301 160 Version 1.1.1
ICS:
33.040.35 Telefonska omrežja Telephone networks
SIST EN 301 160 V1.1.1:2005 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 301 160 V1.1.1:2005

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SIST EN 301 160 V1.1.1:2005
EN 301 160 V1.1.1 (1998-10)
European Standard (Telecommunications series)
Routeing of calls to European Telephony
Numbering Space (ETNS) services

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SIST EN 301 160 V1.1.1:2005
2 EN 301 160 V1.1.1 (1998-10)
Reference
DEN/NA-021412 (aqo00ico.PDF)
Keywords
Addressing
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Copyright Notification
No part may be reproduced except as authorized by written permission.
The copyright and the foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 1998.
All rights reserved.
ETSI

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SIST EN 301 160 V1.1.1:2005
3 EN 301 160 V1.1.1 (1998-10)
Contents
Intellectual Property Rights.4
Foreword .4
1 Scope.5
2 References.5
2.1 Normative references. 5
2.2 Informative references . 5
3 Definitions, symbols and abbreviations.6
3.1 Definitions . 6
3.2 Symbols . 7
3.3 Abbreviations. 7
4 Reference model for the ETNS.8
4.1 Call-related part . 8
4.1.1 First leg: getting the ETNS Routeing number (Rn). 8
4.1.2 Second leg: providing the ETNS service. 9
4.1.3 Service provision by the Serving Network (SgN) . 9
4.2 Management part (non call-related). 9
4.2.1 European number assignment. 10
4.2.2 ETNS Routeing numbers updating. 10
5 Routeing .10
5.1 Routeing methods . 10
5.1.1 Single translation. 11
5.1.2 Double translation . 11
5.2 Structure of ETNS Routeing numbers . 12
5.3 Addressing between networks. 12
5.4 Routeing of calls . 13
5.4.1 Within Europe . 13
5.4.2 To Europe. 13
5.4.3 From Europe . 13
5.4.4 Transiting through Europe. 14
Annex A (informative): Routeing of calls to Corporate Networks (CN).15
A.1 Routeing of calls to Corporate Networks (CN) .15
A.1.1 Direct routeing . 15
A.1.2 Single and double translation. 15
Annex B (informative): Structures of the ETNS Routeing numbers .16
B.1 Structures of the ETNS Routeing numbers.16
History.17
ETSI

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SIST EN 301 160 V1.1.1:2005
4 EN 301 160 V1.1.1 (1998-10)
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 SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect
of ETSI standards", which is available free of charge from the ETSI Secretariat. Latest updates are available on the
ETSI Web server (http://www.etsi.fr/ipr or http://www.etsi.org/ipr).
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 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 European Standard (Telecommunications series) has been produced by ETSI Technical Committee Network
Aspects (NA).
National transposition dates
Date of adoption of this EN: 9 October 1998
Date of latest announcement of this EN (doa): 31 January 1999
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 July 1999
Date of withdrawal of any conflicting National Standard (dow): 31 July 1999
ETSI

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SIST EN 301 160 V1.1.1:2005
5 EN 301 160 V1.1.1 (1998-10)
1 Scope
The present document specifies the routeing methods that shall be used for implementation of the European Telephony
Numbering Space (ETNS), the alternative structures of the routeing numbers , the addressing between networks and how
routeing of calls within Europe, to and from Europe and through Europe shall take place.
2 References
References may be made to:
a) specific versions of publications (identified by date of publication, edition number, version number, etc.), in
which case, subsequent revisions to the referenced document do not apply; or
b) all versions up to and including the identified version (identified by "up to and including" before the version
identity); or
c) all versions subsequent to and including the identified version (identified by "onwards" following the version
identity); or
d) publications without mention of a specific version, in which case the latest version applies.
A non-specific reference to an ETS shall also be taken to refer to later versions published as a EN with the same
number.
2.1 Normative references
[1] EN 301 161 (V1.1): "Management of the European Telephony Numbering Space (ETNS)".
[2] ITU-T Recommendation E.164: "The international public telecommunication numbering plan".
2.2 Informative references
[3] TR 101 074 (V1.1): "European Numbering Task Force; Management of the European Telephony
Numbering Space (ETNS)".
[4] TR 101 073 (V1.1): "Number portability for pan-European services".
[5] TR 101 079 (V1.1): "Network Aspects (NA); Routeing of calls to pan-European services using
European Telephony Numbering Space (ETNS)".
[6] ES 201 104 (V1.1): "Human Factors (HF); Human factors requirements for a European Telephony
Numbering Space (ETNS)".
[7] ETO Report: "Management, Routeing and Portability aspects of the European Telephony
Numbering Space (ETNS)".
ETSI

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SIST EN 301 160 V1.1.1:2005
6 EN 301 160 V1.1.1 (1998-10)
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the following definitions apply:
administrator: The administrator has the responsibility for the high level management of the ETNS.
assisted network: A network which routes a call to an European number towards a serving network it has agreement
with in order to complete the call.
called party: An entity that terminates a call to an European number. The called party may be the ETNS subscriber to
the European number, an entity delegated by the ETNS subscriber, or a terminating equipment of the service network
(e.g. a recorded announcement equipment).
calling party: An entity that dials an European number.
ETNS country: A CEPT member country participating in the ETNS.
ETNS registrar database: The database maintained by the registrar where all data, both administrative and operational,
for each European number are registered.
ETNS routeing number: An ITU-T E.164 [2] number used to route to the service exchange. It can also identify the
called party, the ETNS service provider, and / or the originating network for routeing purposes.
ETNS service provider: An entity that provides one or more ETNS service(s) to its ETNS subscribers on a contractual
basis.
ETNS service: A service that has been assigned an ESI.
ETNS subscriber: An entity that requests a European number from a ETNS service provider in order to offer access
from a calling party to a ETNS service.
ETNS translation database: A database which, in the call process, translates the European number into a routeing
number.
ETNS: The numbering resource identified by E.164 [2] country code 388, used for the provisioning of the ETNS
services.
European number: A number out of the ETNS.
originating network: A network, either assisted or serving, to which the calling party is connected.
registrar: The registrar is responsible for the day-to-day management of the ESN’s behind each ESI.
service exchange: An exchange of the service network that triggers the provision of the service on reception of the
routeing number, and then forwards the call.
service network: A network that operates one or more service exchange(s).
serving exchange: An exchange, in the serving network, that can interrogate directly or indirectly an ETNS translation
database to obtain a routeing number related to the European number, and then forward the call.
serving network: A network, with one or more serving exchanges.
terminating number: A number containing explicit information on the terminating point of the called party. The
number is used to route towards the called party. It can be a routeing number, a European number or a geographical
number.
ETSI

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SIST EN 301 160 V1.1.1:2005
7 EN 301 160 V1.1.1 (1998-10)
3.2 Symbols
For the purposes of the present document, the following symbols apply:
Calling party
Called party
Originating, transit or destination exchange
Serving exchange
Service exchange
ETNS translation database
ETNS service provider database
Combined serving and service exchange
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
CC E.164 [2] Country Code
En European number
ESI European Service Identity
ESP European Service Provider
ETNS European Telephony Numbering Space
IN Intelligent Network
INAP Intelligent Network Application Protocol
ISUP ISDN User Part
R Registrar
Rn Routeing number
RNIC Routeing Number Identification Code
SD Subsequent Digits
SgN Serving Network
SNIC Service Network Identification Code
SNPIC Service Network/Provider Identification Code
SP Service Provider
Tn Terminating number
ETSI

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SIST EN 301 160 V1.1.1:2005
8 EN 301 160 V1.1.1 (1998-10)
4 Reference model for the ETNS
This subclause provides a conceptual description of the implementation of the European Telephony Numbering Space
(ETNS). Figure 1 shows the actors involved in the ETNS, and their relationship with each other. Also shown in figure 1
are the relevant reference points for the ETNS that are described in subclauses 4.1 and 4.2. Figure 1 is divided into
call-related and non call-related parts in order to clearly show the distinction between the routeing functions and the
management functions.
Management part
Admini-
Registrar
(Non call-related part) stration
Ec
D
Ed
Serving ETNS
ETNS Service
provider
network subscriber
Call-related B A
Serving Service ETNS Service
part
provider
network network
Calling
C F
party
Assisted
Terminating Called
network network party
Reference point
Figure 1: Actors and reference points
The reference points in the call-related part of figure 1 are used in the present document, while the reference points in
the non call-related part are used in EN 301 161 [1].
The ETNS Service Provider (SP) is the entity that is relevant in the process of number assignment. The service network
is the entity that is relevant in call processing. The ETNS SP and the service network may be a single entity or not; in the
latter, the entity that assumes the function of ETNS SP may or may not participate in the call process. Such a distinction
leads to recognize two concepts under the word "service provision": the function of the first is to sell a service to a
ETNS subscriber, and to be the sole interface with this ETNS subscriber, this is the role of the ETNS SP; the function of
the second is to operate the call, this is the role of the service network.
The Serving Network (SgN) is responsible for routeing a call from the calling party to the service network. The service
network participates through the service exchange in the provision of ETNS services.
European numbers are managed by an independent authority, identified as the registrar and administration in figure 1.
4.1 Call-related part
This subclause describes the principles for routeing a call from the calling party to the called party. A call to a En can be
divided in two parts.
4.1.1 First leg: getting the ETNS Routeing number (Rn)
The calling party shall dial the En in its international for
...