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ETSI TR 184 003-2010 Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN) Portability of telephone numbers between operators for Next G.pdf

1、 ETSI TR 184 003 V3.1.1 (2010-06)Technical Report Telecommunications and Internet converged Services andProtocols for Advanced Networking (TISPAN);Portability of telephone numbers between operators forNext Generation Networks (NGNs)ETSI ETSI TR 184 003 V3.1.1 (2010-06) 2Reference DTR/TISPAN-04008-NG

2、N-R3 Keywords NP, portability ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice Individual copies

3、 of the present document can be downloaded from: http:/www.etsi.org The present document may be made 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 (PD

4、F). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept 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

5、of this and other ETSI documents is available at http:/portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: http:/portal.etsi.org/chaircor/ETSI_support.asp Copyright Notification No part may be reproduced except a

6、s authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2010. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTM, TIPHONTM, the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered

7、for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. LTE is a Trade Mark of ETSI currently being registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Tr

8、ade Marks registered and owned by the GSM Association. ETSI ETSI TR 184 003 V3.1.1 (2010-06) 3Contents Intellectual Property Rights 4g3Foreword . 4g31 Scope 5g32 References 6g32.1 Normative references . 6g32.2 Informative references 6g33 Definitions and abbreviations . 7g33.1 Definitions 7g33.2 Abbr

9、eviations . 9g34 Background on portability of telephone numbers 10g35 Overview of Number Portability implementation options . 12g35.1 High level framework of DBs for NGN real time and non-real time environment on different levels 12g35.2 General assumptions and requirements on the non-real time envi

10、ronment for number portability in NGNs 13g35.3 Examples of DBs for NGN real time and non-real time environment . 16g35.3.1 RefNPDB, Tier 1 ENUM DB synchronized with RefNPDB 16g35.3.2 RefNPDB, no Tier 1 ENUM DB 17g35.3.3 No physical RefNPDB, no Tier 1 ENUM DB 18g36 Real time environment for Number Po

11、rtability in NGN 18g36.1 Accessing the Real-time Operational Data Base (OpDB) for Number Portability . 18g36.2 Using ENUM as OpDB for Number Portability in NGN . 20g36.3 NGN service layer architecture for Number portability . 23g36.3.1 General 23g36.3.2 Architecture for the core IMS . 23g36.3.3 Arch

12、itecture for the PSTN/ISDN Emulation Subsystem 24g37 NP Routing Information (NRI) and interconnection scenarios with other networks . 25g37.1 Overview 25g37.2 Method of providing NRI in signalling information in NGNs . 26g37.2.1 IETF provisions for Number Portability . 27g37.2.2 Potential means to c

13、onvey NRI in SIP 27g37.2.3 Other aspects . 29g38 Supplementary service aspects . 29g39 Quality of Service aspects 29g3Annex A: Administrative support/process for number portability and OSS aspects 30g3Annex B: Process foruploading and making Number portability data (NPD) available for the real time

14、environment. 31g3B.1 Number Portability Data base (NPDB) implementation options . 31g3B.2 RefNPDB . 32g3B.3 National OpDB (NOpDB) 32g3B.4 Mesh interconnection of NPDBs 33g3Annex C: Process of uploading and making ENUM data in a Shared ENUM infrastructure available for the real time environement 34g3

15、History 35g3ETSI ETSI TR 184 003 V3.1.1 (2010-06) 4Intellectual 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

16、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). Pursuan

17、t 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 docume

18、nt. Foreword This Technical Report (TR) has been produced by ETSI Technical Committee Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN). ETSI ETSI TR 184 003 V3.1.1 (2010-06) 51 Scope The present document focuses on number portability (NP) for telephon

19、e numbers from national numbering plans (NNP) for Next Generation Networks (NGNs). These national numbering plans are based on ITU-T Recommendation E.164 i.19. Identifier Portability, i.e. portability of other public identifiers than telephone numbers (e.g. name based SIP URIs or SIP/tel URIs with a

20、 specific phone-context) is outside the scope of the present document, but it is recognized that this could be the topic of a future separate study. The present document identifies ways to support portability of telephone numbers (e.g. E.164 numbers) between Service Providers (SP) - so called “servi

21、ce provider portability“ (SPP). The term operator in the present document is used instead of Service Provider and the report identifies functionality needed to support the following portability scenarios: Between NGN operators; From NGN operators to PSTN/ISDN SPs; From PSTN/ISDN SPs to NGN operators

22、. NOTE: The types of telephone numbers that are subject to portability is a national matter, and are therefore not addressed in the present document. The support for number portability can be divided in two distinct processes: a) the process of porting a telephone number from one operator to another

23、; and b) the process to establish a call to a telephone number that may be ported. The first process a) would include the actions from: the request of the telephone number to be ported; the distribution and storage of NP Data (NPD) that the telephone number is ported from one operator to another ope

24、rator, and at which time the porting takes effect; making the necessary NPD available to the data base environment that are accessible in real time from the communication processing systems; allowing communication establishment to the operator that currently serves the telephone number. The second p

25、rocess b) would include information: how data bases in the real time environment can be accessed and NPD can be retrieved; from where the NPD can be retrieved; how the NPD can be carried and used and transformed to NP Routing Information (NRI) for the establishment of the communication to the curren

26、t operator. The detailed process of porting a telephone number and storage and distribution of NPD is essentially an administrative process, that may differ very much from country to country. The present document considers mainly the following: NGN network architecture specific for number portabilit

27、y; how the NPD obtained from the real time data base environment is used to route sessions, based on NRI, within and between networks. However, some information relating to the process of porting a telephone number is provided in annex A, and how to populate and make NPD and ENUM data available to t

28、he real time environment is provided in annexes B and C. Clause 5 gives an high level framework concerning different kind of DBs in the real time and in the non-real time environment of the NGN on different levels (i.e. operator, national and international level). ETSI ETSI TR 184 003 V3.1.1 (2010-0

29、6) 62 References References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the reference document (including any amendments) a

30、pplies. Referenced documents which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. 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

31、 references The following referenced documents are necessary for the application of the present document. Not applicable. 2.2 Informative references The following referenced documents are not necessary for the application of the present document but they assist the user with regard to a particular s

32、ubject area. i.1 ETSI TR 101 119 (V1.1.1): “Network Aspects (NA); High level description of number portability“. i.2 ETSI TR 101 122 (V1.1.1): “Network Aspects (NA); Numbering and addressing for Number Portability“. i.3 ETSI TR 101 118 (V1.1.1): “Network Aspects (NA); High level network architecture

33、 and solutions to support number portability“. i.4 ITU-T Supplement 2 to E.164/I.331/Q.11 (2009): “Supplement 2: Number portability“. i.5 ETSI TR 101 697 (V1.1.1): “Number Portability Task Force (NPTF); Guidance on choice of network solutions for service provider portability for geographic and non-g

34、eographic numbers“. i.6 ETSI TS 184 006: “Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); Interconnection and Routeing requirements related to Numbering and Naming for NGNs; NAR Interconnect“. i.7 IETF RFC 4769: “IANA Registration for an Enumservice

35、 Containing Public Switched Telephone Network (PSTN) Signaling Information“. i.8 IETF RFC 4694: “Number Portability Parameters for the tel URI“. i.9 ETSI TS 182 006: “Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); IP Multimedia Subsystem (IMS); Sta

36、ge 2 description (3GPP TS 23.228 V7.2.0, modified)“. i.10 ITU-T Recommendation E.101 (2009): “Definitions of terms used for identifiers (names, numbers, addresses and other identifiers) for public telecommunication services and networks in the E-series Recommendation“. i.11 IETF RFC 3761: “The E.164

37、 to Uniform Resource Identifiers (URI) Dynamic Delegation Discovery System (DDDS) Application (ENUM)“. i.12 ETSI TS 184 010: “Telecommunications and Internet Converged Services and Protocols for Advanced Networks (TISPAN) ENUM Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Sub

38、system (IMS); Stage 2 (3GPP TS 23.228)“. i.14 ETSI ES 282 002: “Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); PSTN/ISDN Emulation Sub-system (PES); Functional architecture“. i.15 ETSI TS 129 235: “Digital cellular telecommunications system (Phase

39、2+); Universal Mobile Telecommunications System (UMTS); LTE; Interworking between SIP-I based circuit-switched core network and other networks (3GPP TS 29.235)“. i.16 IETF RFC 3261: “SIP: Session Initiation Protocol“. i.17 ETSI TR 101 698: “Number Portability Task Force (NPTF); Administrative suppor

40、t of service provider portability for geographic and non-geographic numbers“. i.18 IETF RFC 3966: “The tel URI for Telephone Numbers“. i.19 ITU-T Recommendation E.164 (2005): “The international public telecommunication numbering plan“. 3 Definitions and abbreviations 3.1 Definitions For the purposes

41、 of the present document, the following terms and definitions apply: data base query function: function whereby a data base is accessed in order to ascertain whether a telephone number is ported, and if it is, a Routeing Number or a domain name is obtained that may be used to route the call to a des

42、tination donating network: network from which the number has been ported out in the last porting process NOTE: Source TR 101 122 i.2. donor network: initial Network where a number was assigned by the Numbering Plan Administrator before ever being ported E.164 number: string of decimal digits that sa

43、tisfies the three characteristics of structure, number length and uniqueness specified in ITU-T Recommendation E.164 i.19 NOTE 1: The number contains the information necessary to route the call to the end user or to a point where a service is provided. NOTE 2: Source ITU-T Recommendation E.101 i.10.

44、 ENUM data: data for mapping an E.164 number to an URI NOTE: Mapping can be done directly or by providing pointers to other ENUM DBs according to ordinary DNS procedures. ENUM DB: real time data base that store ENUM data. It is used to resolve E.164 numbers to URIs at session initiation ENUM query:

45、query made on the Shared ENUM infrastructure in order to resolve a specific E.164 number to an routable URI location portability: ability of an end user to retain the same telephone number when moving from one location to another National Operational Data Base (NOpDB): real time common data base tha

46、t store data from the NPDB to be transformed to NRI used for routing by all operators within one country ETSI ETSI TR 184 003 V3.1.1 (2010-06) 8NPA Data: off-line data published by the numbering plan administrator (NPA) which provide the number block assignments to operators that provides services w

47、ithin the jurisdiction of the NPA NOTE: If the telephone numbers are subject to number portability the actual operator serving a specific telephone number may differ from the one provided by these data. In cases where telephone numbers are assigned directly to end users, the operator chosen by the e

48、nd user to provide services is due to spread information that he is serving that telephone number. NPA DB: non-real time data base that store NPA Data run by the NPA NP Data (NPD): off-line data linked to ported telephone numbers as they are stored in and retrieved from the NPDB NOTE: This data cons

49、ist of a list of ported telephone numbers with associated domain names or routeing numbers and optionally further information of traffical and/or administrative nature. Normally these data are provided in a format which requests for further processing in order to render routeing information. NPDB: non-real time data base that is used to store NP Data NOTE: As an option the NPDB may contain information for all telephone numbers (i.e. also non-ported telephone numbers). Such additional information would be base

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