Japan Registry Service Copyright © 2004 JPRS A Glance at ENUM AP* Retreat Feb. 22, 2004 Hiro HOTTA.

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Presentation transcript:

Japan Registry Service Copyright © 2004 JPRS A Glance at ENUM AP* Retreat Feb. 22, 2004 Hiro HOTTA

Japan Registry Service Copyright © 2004 JPRS2 What is ENUM? ENUM is a mechanism for mapping telephone (E.164) numbers to Internet resource address(es) –1 to many Internet resource address(es) are specified as URI(s). Mapping is –Registered using NAPTR records in DNS –referred to by DNS lookup End users (Applications) can select URI(s) according to their preference

Japan Registry Service Copyright © 2004 JPRS3 What is ENUM used for? Vocal comminication –PSTN –VoIP iFAX messenger voic ….. ENUM registry ① looks up SIP method for ① looks up method for ② ③ VoIP communication ② ③ ==> ENUM infrastructure 通信サービス ① looks up SIP method for ② ③ PSTN phone SIP GW PSTN

Japan Registry Service Copyright © 2004 JPRS4 Technology Standardization is being done in –IETF: protocol –ITU: procedure of national operation Standardization in IETF is almost done –RFC2916bis draft-ietf-enum-rfc2916bis-07.txt being reviewed by IESG RIPE NCC manages e164.arpa for _formal_ ENUM DNS space in cooperation with ITU-T Several countries/economies are doing ENUM trials –Subspace delegated to countries/economies

Japan Registry Service Copyright © 2004 JPRS5 E.164 number to domain name conversion 1.Check if E.164 is complete. Ex Remove all non-digit except for leading ‘ + ’ Remove leading ‘ + ’ Put dots ( “. ” ) between each digit Reverse the order of the digits Append the string “.e164.arpa ” to the end e164.arpa

Japan Registry Service Copyright © 2004 JPRS6 ENUM Services Must be published as RFC and registered to IANA. Expected ENUM services, protocols. Service/Protocl service fieldURI Scheme (EX) SIP H.323 InternetFAX Telephone E2U+teltel: ;svc=voice FAX E2U+fax:teltel: ;svc=fax WEB E2U+web:httphttp://jprs.jp/

Japan Registry Service Copyright © 2004 JPRS7 Issues Future vision, business model –Operator ENUM / User ENUM / other models? –Management Entity, responsibility –Charge DNS operation –Tier structure –DNS server distribution –Provisioning of NAPTR records Application software development –ENUM client Relation with other applications, such as er, SIP phone, etc

Japan Registry Service Copyright © 2004 JPRS8 Issues (cont.) Security –DNS data –ENUM provisioning –User communication (application level) Privacy –End user data (whois) –Trace of the user behavior Regulation –ENUM numbering plan –Guarantee of quality of service

Japan Registry Service Copyright © 2004 JPRS9 What is Delegation? Delegation of a Telephone number space for ENUM Trial –Telephone numbers under a country code (ex. 81 for Japan) shall be delegated to and managed by some organization authorized by the corresponding government Procedure –An organization negotiates with the government to become a delegee of the number space –The organization sends a request for delegation to RIPE NCC –RIPE NCC asks ITU-T for authorization to make such delegation (= NS delegation) under e164.arpa –ITU-T asks the corresponding government for endorsement of the delegation –The government endorses the delegation –Delegation is reflected (under e164.arpa) on DNS. arpa e jpcom JapanUK

Japan Registry Service Copyright © 2004 JPRS10 Delegations to countries/economies E.164 CCCountryDelegeeDate of Approval 246Diego GarciaGovernment12/08/02 247AscensionGovernment12/08/02 290Saint HelenaGovernment12/08/02 31NetherlandsMinistry23/05/02 33FranceDiGITIP (Government)28/03/03 358FinlandFinnish Communications Regulatory Authority26/02/03 36HungaryCHIP/ISzT15/07/02 374ArmeniaArminco Ltd11/07/03 40RomaniaMinCom10/12/02 41SwitzerlandOFCOM01/10/03 420Czech RepublicMinistry of Informatics24/06/03 421Slovak RepublicMinistry of Transport, Post, and Telecommunications04/06/03 423LiechtensteinSWITCH21/10/03 43AustriaRegulator11/06/02 44UKDTI/Nominum16/05/02 as of Feb.20, 2004

Japan Registry Service Copyright © 2004 JPRS11 Delegations to countries/economies (continued) E.164 CCCountryDelegeeDate of Approval 46SwedenNPTA10/12/02 48PolandNASK18/07/02 49GermanyDENIC16/05/02 55BrazilBrazilian Internet Registry19/07/02 65SingaporeIDA (Government)04/06/03 86China (c)CNNIC02/09/ (a)VISIONng16/05/02 971United Arab EmiratesEtisalat13/01/ (b)NeuStar02/02/01 Notes: (a)This is a Universal Personal Telephony (UPT) code. (b)This is a trial code granted to NeuStar for a limited period. The period expires on 28 May (c)This is a temporary authorization for ENUM global TLD trial and evaluation. This delegation will end on 30 June If the ITU Interim Procedure is discontinued before then, or if the Recommendation E.A-ENUM is approved before 30 June 2004, the delegation will be turned into an objection.

Japan Registry Service Copyright © 2004 JPRS12 Delegations (summary) 24 delegations –Europe: 15 –Asia: 2 (Singapore and China) –Middle east: 1 –Latin America: 1 –Islands, archipelago: 3 –Beyond-CC experiment: 2

Japan Registry Service Copyright © 2004 JPRS13 Patters of Trial Organizatios Led by organization created for the trial –Registry, regulator, telco, vendor, ISP, … –Austria, UK, Netherlands, Sweden, Japan, … (many) Led by ccTLD –ccTLD plays the leading role of the trial –Germany, Korea, … Led by regulator (government) –Registry, telco, and others are members of the trial –China, Singapore Led by a company entrusted by regulator (government) –Armenia, islands, Led by entrusted ccTLD registry of another country –Lichtenstein (led by.ch registry SWITCH) Intuitive classification

Japan Registry Service Copyright © 2004 JPRS14 Activities in Europe 2 trials very often exposed –Austria Leading technology trials ENUM tutorials and demonstrations in RIPE/CENTR/IETF/ … Support for ENUM implementation in Asterisk (IP PBX) –UK UKEG and UKETG for study and trials –Telcos, registries, DNS providers, … –Members from inside and outside of UK Netherlands. Sweden, Germany, Poland, …

Japan Registry Service Copyright © 2004 JPRS15 Activities in Asia Pacific Many countries/economies are doing some activities –Korea –China –Taiwan –Japan –Singapore –Australia –…. (sorry …. I ’ m sure I miss someone else) ENUM BoF : 6-9pm on Wednesday Feb.25

Japan Registry Service Copyright © 2004 JPRS16 Summary Standardization in IETF is almost done Trials are under way in many countries/economies –Especially in Europe and east Asia –Commercial operation is about to start in a few countries

Japan Registry Service Copyright © 2004 JPRS17 URIs IETF ENUM WG – ITU-T ENUM Web page – National trials –Austria : –UK : –Taiwan : –Korea : –Japan :