ETSI EN 301 161 V1.2.1 (2002-01)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Upravljanje storitev evropskega telefonskega številskega prostora (ETNS)Management of the European Telephony Numbering Space (ETNS)33.040.01Telekomunikacijski sistemi na splošnoTelecommunication systems in generalICS:Ta slovenski standard je istoveten z:EN 301 161 Version 1.2.1SIST EN 301 161 V1.2.1:2005en01-januar-2005SIST EN 301 161 V1.2.1:2005SLOVENSKI
STANDARD



SIST EN 301 161 V1.2.1:2005



ETSI EN 301 161 V1.2.1 (2002-01)European Standard (Telecommunications series) Management of the European TelephonyNumbering Space (ETNS) SIST EN 301 161 V1.2.1:2005



ETSI ETSI EN 301 161 V1.2.1 (2002-01)2
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© European Telecommunications Standards Institute 2002. All rights reserved.
SIST EN 301 161 V1.2.1:2005



ETSI ETSI EN 301 161 V1.2.1 (2002-01)3 Contents Intellectual Property Rights.4 Foreword.4 Introduction.4 1 Scope.5 2 References.5 3 Definitions, symbols and abbreviations.5 3.1 Definitions.5 3.2 Symbols.6 3.3 Abbreviations.6 4 Reference model for the ETNS.7 4.1 Call-related [Routeing part].8 4.1.1 First leg: getting the routeing number.8 4.1.2 Second leg: providing the ETNS service.8 4.1.3 Service provision by the Serving network.9 4.2 Non-call related [Management part].9 4.2.1 ETNS number assignment.9 4.2.2 Obtaining Routeing numbers (Rns).9 4.2.3 Distribution of Routeing numbers (Rns).10 5 The ETNS number (En).11 5.1 Requirements for ETNS numbers.11 5.2 Structure of ETNS numbers.12 5.3 European Service Identity (ESI).12 5.4 European Subscriber Number (ESN).12 6 Evolution from ETNS to a global scheme.13 7 Management of the ETNS.14 7.1 Organizations involved in the management of ETNS.14 7.2 Criteria for the establishment of an ESI.14 8 ETNS numbering conventions.15 9 Management and Distribution of routeing numbers.15 10 ETNS Service Provider portability.15 Annex A (informative): Information to file in a proposal for reservation of an ESI to establish service.16 A.1 Preferred ESI.16 A.2 Description of service.16 A.3 Charging Information.16 A.4 Market Potential.17 A.5 Timescales.17 A.6 Other considerations.17 History.18
SIST EN 301 161 V1.2.1:2005



ETSI ETSI EN 301 161 V1.2.1 (2002-01)4 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 European Standard (Telecommunications series) has been produced by ETSI Technical Committee Services and Protocols for Advanced Networks (SPAN).
National transposition dates Date of adoption of this EN: 18 January 2002 Date of latest announcement of this EN (doa): 30 April 2002 Date of latest publication of new National Standard or endorsement of this EN (dop/e):
31 October 2002 Date of withdrawal of any conflicting National Standard (dow): 31 October 2002
Introduction ETSI, under a mandate from the CEU, has been requested to produce a standard for the number structure, possible evolution of ETNS numbers (Ens) towards a global scheme, and framework of functions regarding ETNS numbering conventions. ETO has, on behalf of ECTRA for the CEU, produced proposals for the management of the ETNS, and developed ETNS numbering conventions that have been agreed by ECTRA. The studies made in ETSI and the standards produced are a prerequisite to the necessary commercial agreements between the parties willing to participate in the ETNS. The present document is based on the results of the ETSI studies on the topic, based on the prime requirement of the ETNS which is the ability to introduce services in an open competitive environment. ECTRA having decided in November 1996 to base the ETNS on Country Code (CC) 388. At the March 2000 meeting of ITU-T Study Group 2, it was decided that the Country Code 388 and a one digit Identification Code whose current value is 3, was assigned to ETNS.
The present document has been designed for an early implementation of the ETNS. Improvements of the ETNS architecture may occur later and result in revisions of the present document. SIST EN 301 161 V1.2.1:2005



ETSI ETSI EN 301 161 V1.2.1 (2002-01)5 1 Scope The present document specifies the management of ETNS, including the number structure, the allocation of codes to the service described, number length and evolution from National numbers to pan-European to global numbers. It also describes the reference model for the ETNS and specifies the methods for routeing a call from the calling party to the called party and the management methods to be used for controlling such procedures.
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 and/or edition number or version number) or non-specific. • For a specific reference, subsequent revisions do not apply. • For a non-specific reference, the latest version applies. [1] ITU-T Recommendation E.164: "The international public telecommunication numbering plan". [2] ETSI EN 301 160 (V1.1.1): "Routeing of calls to European Telephony Numbering Space (ETNS) services". [3] ETSI TR 101 073 (V1.1.1): "Number portability for pan-European services". [4] ETSI TR 101 079 (V1.1.1): "Network Aspects (NA); Routeing of calls to pan-European services using European Telephony Numbering Space (ETNS)". [5] Void. [6] ETO Report: "Management, Routeing and Portability aspects of the European Telephony Numbering Space (ETNS)". [7] Void. [8] Void. [9] ITU-T Recommendation E.353: "Routing of calls when using international routing addresses". 3 Definitions, symbols and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: administrator: responsible for the high level management of the ETNS assisted network: network which routes a call to an ETNS number towards a serving network it has agreement with in order to complete the call called party: entity that terminates a call to an ETNS number calling party: entity that dials a ETNS number ETNS country: CEPT member country participating in the ETNS ETNS Registrar database: database maintained by the Registrar where all data, both administrative and operational, for each ETNS number are registered SIST EN 301 161 V1.2.1:2005



ETSI ETSI EN 301 161 V1.2.1 (2002-01)6 ETNS routeing number: an ITU-T Recommendation E.164 number used to route to the service exchange NOTE: It can also identify the called party, the ETNS service provider/producer, and/or the originating network. ITU-T Recommendation E.353 [9] is an alternative in the future. ETNS signalling address: standardized address used to route signalling messages over the interface, that is not in the call path, between any pair of ETNS entities NOTE: An example may be the use of SCCP Global Titles. ETNS service producer: functional entity producing the ETNS service(s) in question, having real-time control of the service(s). NOTE: See clause 4 for the relationship between service producer and service provider. ETNS service provider: functional entity that provides one or more ETNS service(s) to its ETNS subscribers on a contractual basis and is not involved in real-time control of the service ETNS service: service that has been assigned an ESI ETNS subscriber: entity that requests a ETNS number from a ETNS service provider in order to offer access from a calling party to a ETNS service ETNS translation database: capability, which in the call process, translates the ETNS number into a routeing number ETNS: numbering resource identified by E.164 country code 388 and a one digit identification code whose current value is 3, used for the provisioning of the ETNS services originating network: network, either assisted or serving, to which the calling party is connected registrar: responsible for the day-to-day management of the ESNs behind each ESI service exchange: 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: network that operates one or more service exchange(s) serving exchange: exchange, in the serving network, that can interrogate directly or indirectly an ETNS translation database to obtain a routeing number related to the ETNS number, and then forwards the call to the service network serving network: network, with one or more serving exchange(s) terminating number: number containing explicit information on the terminating point of the called party NOTE: The number is used to route towards the called party. 3.2 Symbols For the purposes of the present document, the following symbols apply:
calling party
called party 3.3 Abbreviations For the purposes of the present document, the following abbreviations apply: CC E.164 Country Code CEPT Conférence Européenne des Postes et Télécommunications CEU Commission of the European Union
ECC ETNS Country Code ECTRA European Committee for Telecommunications Regulatory Affairs En ETNS number SIST EN 301 161 V1.2.1:2005



ETSI ETSI EN 301 161 V1.2.1 (2002-01)7 ESC European Service Code ESI European Service Identity ESN European Subscriber Number ETNS European Telephony Numbering Space ETO European Telecommunications Office GSN Global Subscriber Number NNA National Numbering Authority SgN Serving Network R Registrar Rn Routeing number 4 Reference model for the ETNS This clause 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 clauses 4.2 and 4.3. 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. The following Reference Model reflects only the management and routeing aspects of the non-call and call related parts, respectively. Assisted
Network
Serving
Network
Calling
Party
Service
Network
Terminating
Network
Called
Party
Service
Provider
Registrar
ETNS
Subscriber
Administrator
E
D
B
C
F
A
NON - CALL - RELATED
[MANAGEMENT PART]
CALL - RELATED
[ROUTEING PART]
ETNS ETNS
Translation
G
ETNS Translation Service
Producer
ETNS Service
Producer ETNS Service Network NNA
Figure 1: Actors and reference points The reference points in the management (non call-related) part of the figure 1 are used in the present document, while the reference points in the call-related part are used in TR 101 079 [4].
SIST EN 301 161 V1.2.1:2005



ETSI ETSI EN 301 161 V1.2.1 (2002-01)8 The ETNS Service Provider is the entity that is relevant in the process of number assignment. The service network is the entity that is relevant in call processing. One single entity may be both the ETNS Service Producer and the service network, or they may be different entities; in the latter, the entity that assumes the function of ETNS Service Producer 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 Service Provider; the function of the second is to operate the call, this is the role of the Service Producer. The Serving Network (SgN) is responsible for routeing a call from the calling party to the service network. The service network (and potentially the Service Producer) is (are) responsible for providing the service itself. ETNS numbers (Ens) are managed by independent authorities which are identified as the registrar and the administrator in figure 1. 4.1 Call-related [Routeing part] This clause describes the principles for routeing a call from the calling party to the called party. This is studied in detail in TR 101 079 [4] and EN 301 160 [2]. A call to a ETNS number (En) can be divided in two parts. 4.1.1 First leg: getting the routeing number The calling party shall dial the En in its international format. Based on the European Service Identifier (ESI), clause 5, the call is routed to the serving exchange in the SgN. Potentially, this exchange may not be located in the calling party's network. The originating network is then called an assisted network, interconnected to the SgN through reference point C. An assisted network can be connected to different SgNs, e.g. for routeing differently depending on the ESI, or it can redirect all ETNS calls to one SgN. The serving exchange, analysing the ESI, triggers the ETNS translation database to translate the incoming En into an outgoing Routeing number (Rn). The ETNS translation database can be inside or outside the SgN, e.g. when several SgNs share the same ETNS translation database. The Rns can vary from a SgN to another. Whether the area from which a single En is accessible relies on a subscription or not, is service dependent. This ends the first leg of the call which consists of routeing the cal
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