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Document IPW-3 1 Numbering, Naming, and Addressing at ITU-T Study Group 2 (SG2) Presentation by: Fred Gaechter Rapporteur, Q1/2 +1 732 699 5500

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Presentation on theme: "Document IPW-3 1 Numbering, Naming, and Addressing at ITU-T Study Group 2 (SG2) Presentation by: Fred Gaechter Rapporteur, Q1/2 +1 732 699 5500"— Presentation transcript:

1 Document IPW-3 1 Numbering, Naming, and Addressing at ITU-T Study Group 2 (SG2) Presentation by: Fred Gaechter Rapporteur, Q1/2 +1 732 699 5500

2 2 Question 1: Applications of Numbering, Naming and Addressing Plans for Fixed & Mobile Services ITU-T Study Group 2: Network & Service Operations qCollaborators qWork Method & Considerations qScope of Work qNN&A Expertise & Experience qSuccessful Resolutions qE.164 Numbers - Format and Functions qNN&A for New Technologies qWork Program for 2001-2005 Study Period

3 3 Q1/2 Collaborators qNetwork Operators (Competitors) vDomestic - fixed and wireless vInternational vGlobal and Regional Satellite qService Providers qVendors - Equipment and Software qRegulatory Authorities qNumbering Plan Administrators qIndustry Associations qRegional Standards Forums

4 4 Work Methods and Considerations qWork Methods vContribution driven vConsensus decisions at RG and WP levels qWork Considerations vEnable new services and capabilities vEnsure resource inventory - availability vs. conservation vFair and equitable use and assignment of resources vAccommodate and encourage competition vConform to regulations in all countries vSupport growth in developing countries

5 5 Scope of Work qDevelopment, Maintenance, and Application of E-Series Numbering, Naming and Addressing Recommendations vE.164 –E.164.1 - Criteria & Procedures for the Reservation, Assignment & Reclamation of E.164 CCs and ICs vE.168 - Application of E.164 for UPT vE.169 - Application of E.164 Numbering Plan for UIFN –E.169.2 - Application of E.164 Numbering Plan for UIPRN –E.169.3 - Application of E.164 Numbering Plan for UISCN vE.190 vE.191 - B-ISDN Numbering and Addressing –E.191.1 - Criteria & Procedures for ITU-Defined AESAs vE.193 - E.164 Country Code Expansion vE.195 - ITU Global Numbering Resource Administration vE.212 - International Identification Plan for Mobile Terminals and Mobile Users

6 6 Scope of Work qResolve requests for Numbering Resources qDevelop New Recommendations qConsultant to the ITU-TSB (Resource Registrar) vNumbering Coordination Team (NCT) qAssignment Guidelines and Procedures for Global Resources qGlobal Numbering Resource Management qLead ITU Study Group(SG2) for Numbering matters (Res. 20)

7 7 Successful Issue Resolutions qExpanded Numbering Resource Functionalities vE.164 - Geographic to Services, Networks, and GMSSs vE.212 - Wireless to Fixed qNumbering Resources for New Services/Capabilities vUPT, B-ISDN, UIFS, UIPRS, UISCS, GMSS, IMT2000 qStudied IP Telephony Numbering - based on ETSI Tiphon Request qE.164/X.121 Interworking Arrangement qAdvisor to ITU-TSB as Global Resource Registrar qReport on Numbering Plans for GII qCarrier/Service Provider Selection Supplement qNumber Portability Supplement qResources for Groups of Countries qResources for Trials qINMARSAT SNAC

8 8 NNA Expertise and Experience qNumbering/Dialing Plan Design and Utilization qNumbering Plan Administration and Management qNumbering Requirements for Services/Capabilities qNetwork Operations qNumbering Impacts on Networks qRegulatory Impacts of Numbering/Dialing Issues

9 9 E.164 Numbers - Format & Functions(1/3) qHistory vAvailable since 1964 as international telephony number plan vHas evolved to enable and conform to new technologies, e.g. ISDN, Intelligent Network, ATM, etc. qThree formats available (differentiated with Country Code) vGeographical (Switzerland, North America, etc.) vGlobal service (e.g., International Freephone Service, etc.) vNetwork (BT, MCIWorldcom, etc) Country CodeNational Destination CodeSubscriber Number Country CodeGlobal Subscriber Number Country CodeIdentification CodeSubscriber Number responsibility of each country or geographical area ITU ITU responsibility responsibility of each network

10 10 E.164 Numbers - Format & Functions(2/3) qTypical Functions vIdentify a terminating network and a customers physical interface of telephone / ISDN vIdentify customer premises connected to an interface (dial-in) vIdentify services and customers (freephone/ mobile) Logical Physical Name like Address like qA Trend of E.164 (increasing naming role) vCreated as address for telephony vToday, use of E.164 number as name is increasing: - Intelligent Network Services - Number Portability E.164 number eg. 800XXXXXXXX E.164 number eg. 41227305887 translation

11 11 E.164 Numbers - Format & Functions(3/3) qDialing and Sub-addressing vITU-T terminology prefix is not a part of E.164 number vPrefixes determine the following format of E.164 number vSub-addresses provide additional address information qSecurity vE.164 numbers are transported in secure dedicated signalling network vCalling Line Identification (Caller ID) is provided / verified by network operators CCNDCSN Prefix Number International Prefix National Prefix NDCSN E.164 Number Sub-address

12 12 E.164 advantages qSimplicity vLanguage neutral & Special characters unnecessary vSupported by simple terminals qAdministration vUnambiguous administration vGenerally no explicit linkage between digits and an organization vSecurity qCompetition vMechanism available to select transit network operator based on a callers choice

13 13 NN&A For New Technologies - Example of Collaborative Effort qE.191, B-ISDN Addressing vCreated strong linkage with ATM Forum vOrganized presentations in both Forums (ITU & ATM) –Gained knowledge of each others perspective –Broke down barriers and mistrust vOngoing relationship - regular meeting updates vCross fertilization of ideas through frequent communication vIdentified gap for global address authority vFilled that gap - development of ITU IND vSeparation and definition of Name, Number, and Address vRe-naming E.191 to B-ISDN Addressing to accommodate ATM terminology vRecognition and promotion of the Addressing and Routing linkage

14 14 2000-2005 Work Plan qContinuation/Conclusion of Projects Shown in Scope of Work and Successful Issue Resolutions qGlobal Evolution of NN&A vPredict evolution of services, technologies, capabilities, and networks vDefine NN&A in the context of the predictions vDevelop a NN&A scheme for the future qNN&A for Interworking Between E.164 & IP Address-Based Networks vAssumes convergence of existing telecom networks and IP address- based networks vDevelop NN&A mechanism(s) to support interworking –Near-term: determine use of E.164 resources by IP address-based networks –Long-term: study potential convergence of NN&A schemes for all international networks

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