1、ETSI EN 301 160 1.2.1 (2002-01) European Sfandard (Telecommunicafions series) Routeing of calls to European Telephony Numbering Space (ETNS) services 2 ETSI EN 301 160 V1.2.1 (2002-01) Reference RENEPAN-1 10101 Keywords addressing ETSI 650 Route des Lucioles F-O6921 Sophia Antipolis Cedex - FRANCE T
2、el.: +33 4 92 94 42 O0 Fax: +33 4 93 65 47 16 Siret No 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-prfecture de Grasse (06) No 7803/88 Important notice Individual copies of the present document can be downloaded from: http:l/w.etsi .orq The present document may be m
3、ade available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version k
4、ept on a specific network drive within ETSI Secretariat. 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 3 If you find errors in the present document, se
5、nd your comment to: Cori vriaht Notifica tion No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. O European Telecommunications Standards Institute 2002. All rights reserved. ETSI 3 ETSI EN 301 160 V1.
6、2.1 (2002-01) Contents Intellectual Property Rights 5 Foreword . 5 1 Scope 6 2 References 6 3 Definitions. symbols and abbreviations . 6 3.1 Definitions 6 Symbols 8 3.2 3.3 Abbreviations . 8 4 4.1 4.1.1 4.1.2 4.1.3 4.2 4.2.1 4.2.2 4.2.3 Reference model for the ETNS 9 Call-related (Routeing Part) 10
7、Getting the ETNS Route 10 Providing the ETNS serv 10 Examples of Call Handling 10 Non-call related (Management part) 11 ETNS number assignment 11 Obtaining Routeing numbers (Rns) 11 Distribution of ETNS Routeing numbers (Rns) 11 5 Routeing . 12 5.1 Routeing methods . 12 5.1.1 Single translation 12 5
8、.1.2 Double translation . 13 5.2 Structure of ETNS Routeing numbers 14 5.3 Addressing between networks 14 6 Number portability within the ETNS . 15 Annex A (Informative): Routeing of calls to corporate networks (CN) . 16 A . 1 Model for actors involved 16 A.2 Routeing methods . 16 A.2.1 Double trans
9、latio A.2.1.1 Example 1: S A.2.1.2 A.2.1.3 A.2.1.4 Example 4: S A.2.2 Single translation 20 A.2.2.1 Case 1: SgN/ScN located in another country than the CN and 2 access points into the CN . 21 A.2.2.2 Case 2: SgN/ScN located in another country than the CN and 1 access point into the CN 21 A.2.2.3 Cas
10、e 3: SgN/ScN located in the same country as CN and 2 access points into the CN 22 A.2.2.4 Case 4: SgN/ScN located in the same country as CN and 1 access point into the CN . 23 A.2.3 Direct routeing 23 A.3 Necessary digit analysis . 24 Annex B (informative): Structures of the ETNS Routeing numbers .
11、25 B.l Structures ofthe ETNS Routeing numbers 25 B.2 Comparison of the 2 alternatives for routeing numbers (Rns): National specific Rns and Network specific Rns 26 B.2.1 National specific Rns: 26 B.2.2 Network specific Rns . 28 Example 2: SgN and ScN located in different countries and 1 access point
12、 into the CN Example 3: SgN and ScN located in 1 country and 2 access points into the CN B . 1.1 Choice of Structure 25 Annex C (informative): Impact of Routeing on Signalling . 30 ETSI 4 ETSI EN 301 160 V1.2.1 (2002-01) C . 1 General Implications 30 C.2 Rnl Routeing method . 31 C.3 Rn2 Routeing met
13、hod . 31 C.3.1 Introduction 31 C.3.2 E.164 number as Rn for routeing to service network . 31 C.3.3 NRN as Rn for routeing to service network . 32 C.3.4 Use ofthe ISUP procedures for GVNS 32 C.3.5 Support ofE.353 for INRA 32 C.4 Implications of SCCP routeing . 33 C.5 Summary 33 Annex D (informative):
14、 Bibliography . 34 History 35 ETSI 5 ETSI EN 301 160 V1.2.1 (2002-01) 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 no
15、n-members, and can be found in ETSI SR O00 314: “Intellectual Property Rights (7PRs); Essential, orpotentially Essential, IPRs notlJied to ETSI in respect ofETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (5). Pursuant to the ETSI IP
16、R 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 O00 3 14 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword Th
17、is 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: Date of latest announcement of this EN (doa): Date of latest publication of new National Stand
18、ard or endorsement of this EN (dop/e): Date of withdrawal of any conflicting National Standard (dow): 18 January 2002 30 April 2002 3 1 October 2002 3 1 October 2002 ETSI 6 ETSI EN 301 160 V1.2.1 (2002-01) 1 Scope The present document specifies the routeing methods that shall be used for implementat
19、ion of the European Telephony Numbering Space (ETNS), the alternative structures of the routeing numbers and the addressing between networks. 2 Re fe re nces The following documents contain provisions which, through reference in this text, constitute provisions of the present document. References ar
20、e either specific (identified by date of publication andor 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. il 21 ETSI EN 301 161 (Vl.l.1): “Management of the European Telephony N
21、umbering Space (ETNS)“. ETSI EN 301 070-1 (Vi .2.2): “Integrated Services Digital Network (ISDN); Signalling System No.7; ISDN User Part (ISUP) version 3 interactions with the Intelligent Network Application Part (INAP); Part 1 : Protocol specification ITU-T Recommendation Q. 1600 (1997), modified“.
22、 ETSI EN 30 1 464 (Vi. 1.1): “Integrated Services Digital Network (ISDN); Signalling System N0.7 (SS7); ISDN User Part (ISUP) version 4 interactions with the Intelligent Network Application Part (INAP); Part 1 : Protocol specification ITU-T Recommendation Q. 1601 (1999), modified“. ETSI TR 101 092:
23、“Network Aspects (NA); Report on Carrier Selection“. ETSI ETS 300 121: “Integrated Services Digital Network (ISDN); Application of the ISDN User Part (ISUP) of CCITT Signalling System No.7 for international ISDN interconnections (ISUP version 1)“. ETSI EN 300 356-1 (V4.2.1): “Integrated Services Dig
24、ital Network (ISDN); Signalling System N0.7 (SS7); ISDN User Part (ISUP) version 4 for the international interface; Part 1: Basic services ITU-T Recommendations Q.761 to Q.764 (1999) modified“. ET0 Report: “Management, Routeing and Portability aspects of the European Telephony Numbering Space (ETNS)
25、“. ITU-T Recommendation E. 164: “The international public telecommunication numbering plan“ ITU-T Recommendation E.353 : “Routing of calls when using international routing addresses“. ITU-T Recommendation Q.767: “Application of the ISDN user part of CCITT signalling system No. 7 for international IS
26、DN interconnections“. 31 41 51 61 71 SI 91 lo1 3 3.1 Definitions, symbols and abbreviations De fi nit ions For the purposes of the present document, the following terms and definitions apply: administrator: has the responsibility for the high level management of the ETNS assisted network network whi
27、ch routes a call to an ETNS number towards a serving network it has agreement with in order to complete the call ETSI 7 ETSI EN 301 160 V1.2.1 (2002-01) called party: entity that terminates a call to an ETNS number calling party: entity that dials an ETNS number ETNS country: CEPT member country par
28、ticipating in the ETNS ETNS number: number from the ETNS numbering resource ETNS registrar database: database maintained by the registrar where all data, both administrative and operational, for each ETNS number are registered ETNS signalling address: standardized address used to route signalling me
29、ssages 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 routeing number: ITU-T Recommendation E. 164 number used to route to the service exchange NOTE: It can also identiSl the called party, the ETNS servi
30、ce provider/producer, andor the originating network. ITU-T Recommendation E.353 is an alternative in the future. ETNS service producer: functional entity producing the ETNS service(s) in question, having real-time control of the service(s) ETNS service provider: functional entity that provides one o
31、r more ETNS service(s) to its ETNS subscribers on a contractual basis and is not involved in real-time control of the service NOTE: See clause 4 for the relationship between service producer and service provider. ETNS service: service that has been assigned a European Service Identity (ESI) ETNS sub
32、scriber: 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 ITU-T Re
33、commendation 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 t
34、he European Service Numbers (ESNs) behind each ES1 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: exch
35、ange, 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 exchanges terminating number: number cont
36、aining explicit information on the terminating point of the called party NOTE: The number is used to route towards the called party. ETSI 8 ETSI EN 301 160 V1.2.1 (2002-01) 3.2 Symbols For the purposes of the present document, the following symbols apply: called party (symbol needs to correspond to
37、figure) calling party combined serving and service exchange ETNS service provider database ETNS translation database 0 aD service exchange e - t- serving exchange originating, transit or destination exchange 3.3 Abbreviations For the purposes of the present document, the following abbreviations appl
38、y: AN cc CEPT CN CNID CNSN cs DR DT En ES1 ESNs ETNS GVNS IN INAP INUS ISDN ISUP NDC NDCx NN “A NNR NoA NP U Rn RNIC SA sc SCCP ScN SD SN SNIC SNx ss7 ST SgN Assisted Network ITU-T Recommendation E. 164 Country Code European Conference of Postal and Telecommunications Administrations Corporate Netwo
39、rk Corporate Network IDentity Corporate Network Subscriber Number Connected Subaddress Direct Routeing Double Translation ETNS number European Service Identity European Service Numbers European Telephony Numbering Space Global Virtual Network Service Intelligent Network Intelligent Network Applicati
40、on Protocol International Network Routeing Adresses Integrated Services Digital Network ISDN User Part National Destination Code identiSling the Rn series of addresses National Destination Code identiSling a series of terminating numbers in country x National Numbers National Numbering Authority Nat
41、ional Number Resource Nature of Address Numbering Plan Routeing Address Routeing number Routeing Number Identification Code Signalling Address Signalling Capability Signalling Connection Control Part Service Network Subsequent Digits Serving Network Subscriber Numbers within the Rn series of address
42、es Service Network Identification Code Subscriber Numbers within the Tn series of numbers in country x Signalling System NO7 Single Translation ETSI 9 ETSI EN 301 160 VI .2.1 (2002-01) TN Terminating Network Tn Terminating number TrN Transit Network VLR Visitor Location Register (GSM) 4 Reference mo
43、del 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 ar
44、e described in clauses 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. Administrator 7 NON-CALL-RELATE D MANAGEMENT PART CALL-RELATE D ROUTE ING PART I B Figure 1 : Act
45、ors 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 30 1 16 1 i. For simplicity transit networks are not shown in figure 1, but these could be present between any o
46、f the networks. The ETNS Service Provider is the entity that is relevant in the process of number assignment. The service producer and service network are entities that are relevant in call processing. The ETNS Service Provider, ETNS Service Producer and the service network may or may not be a singl
47、e legal entity. Such a distinction leads to the recognition of two concepts under the term “service provision“: 0 the function of the first is to sell a service to an ETNS subscriber, and to be the sole interface with this ETNS subscriber. This is the role of the ETNS Service Provider; 0 the functio
48、n of the second is to operate the call. This is the role of the ETNS Service Producer and the service network. ETSI 10 ETSI EN 301 160 V1.2.1 (2002-01) The Serving Network (SgN) is responsible for routeing a call from the calling party to the service network. The service network participates through
49、 the service exchange in the provision of ETNS services. ETNS numbers are managed by an independent body, identified as the registrar and 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. A call to an ETNS number (En) can be divided in two parts. 4.1.1 Getting the ETNS Routeing number (Rn) The calling party shall dial the En in its international format. Based on the ES1 i, the call is routed to the serving exchange in the SgN. Potentially, this excha
