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ENUM Activities in Korea. April 2003 Seung Jai, Yi sjlee@nic.or.kr +82-2-2186-4551. Slide 1. Contents. Concept How does ENUM work Framework of ENUM trial in Korea ENUM trial system in Korea ENUM trial system configuration Standardization plan in Korea Annex : ENUM trial Demo.
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ENUM Activities in Korea April 2003 Seung Jai, Yi sjlee@nic.or.kr +82-2-2186-4551 GSC-8, OTTAWA Slide 1
Contents • Concept • How does ENUM work • Framework of ENUM trial in Korea • ENUM trial system in Korea • ENUM trial system configuration • Standardization plan in Korea • Annex : ENUM trial Demo GSC-8, OTTAWA Slide 2
■ Assistant Manager Technical Support Division Next Geneation Research & Deveolopment Team Yi, Seung-Jai ■ Assistant Manager Technical Support Division Next Geneation Research & Deveolopment Team Yi, Seung-Jai KOREA NETWORK INFORMATION CENTER 11F, KTF B/D, 1321-11, Seocho2-Dong, Seocho-Gu, Seoul, Korea, 137-857 Tel. +82-2-2186-4551Fax. +82-2-2186-4496 Mobile. +82-11-9954-8469E-mail. sjlee@nic.or.kr www.nic.or.kr KOREA NETWORK INFORMATION CENTER 11F, KTF B/D, 1321-11, Seocho2-Dong, Seocho-Gu, Seoul, Korea, 137-857 enum : +82-2-2186-4551 Concept • ENUM is to integrate the addresses into one E.164 number ※ E.164 number : A number consistent with ITU-T Rec. E.164 "The international public telecommunication numbering plan" - Current Biz card- -Future Biz card- GSC-8, OTTAWA Slide 3
How does it work • Transform E.164 number into ENUM Domain names • IETF RFC 2916 “E.164 Number and DNS” • Reverse the digits : +82-2-2186-4500 →00546812228 • Separate the digits with a “.” : 0.0.5.4.6.8.1.2.2.2.8 • Add the ENUM domain name at the end : 0.0.5.4.6.8.1.2.2.2.8.e164.arpa • Query the ENUM DNS using NAPTR RR • IETF RFC 2915 “NAPTR DNS Resource Record” • ENUM DNS stores a list of service specific internet addresses in the form of URI’s in a DNS resource record called NAPTR for each subscriber • Return the list of services with that query • Choose a service from the ENUM DNS NAPTR • Connect to the service(E-mail, Home page, VoIP, FoIP, etc.) GSC-8, OTTAWA Slide 4
ENUM trial system in Korea • Mission • Examination on the availability of ENUM technical side • Term • 2003. 3 ~ 2003. 12 • Budget • About US$300,000(Funded by Korean Government-MIC) • Scope • ENUM API • ENUM DNS & Registration System • ENUM Telephony System GSC-8, OTTAWA Slide 5
ENUM trial system configuration ENUM API ENUM Client Service Program ③ ENUM Query ⑤Select Homepage ⑤ Select email ⑤-1 Select Internet Phone ⑤-2 Select Phone ENUM Phone Program ④ ENUM Information list ENUM Service User 0.0.5.4.6.8.1.2.2.2.8.e164.arpa 100 10 “u” tel:82221864500 100 10 “u” sip:82221864500@nic.or.kr 100 10 “u” mailto:enum@nic.or.kr 100 10 “u” http://www.nic.or.kr - IP/PSTN Protocol Mapping System - IP/PSTN Signal/Media Mapping System ENUM DNS ⑤-1 Select Internet phone ② ENUM Registration and Information insertion ENUM voice call Application embedded PC ① Input E N U M Internet IP Phone ⑤-2 Select phone ENUM trial registrant Phone for PSTN ENUM Registration web page PSTN ENUM DNS, Registration System ENUM Telephony System GSC-8, OTTAWA Slide 6
ENUM Standardization plan • 2002. 10 : ENUM adhoc established in TTA • 2003 : Developing 3 items • 2004 : Developing “Specifications for ENUM implementation” based on the result of ENUM trial system in Korea GSC-8, OTTAWA Slide 7
<Annex 1> ENUM trial Demo • ENUM API(For OS-Windows) ①Input ENUM Select : (82-02) Type : (21864500) ②Click the button ③Select a service GSC-8, OTTAWA Slide 8
<Annex 2> ENUM trial Demo • ENUM API(For IE) ①Input ENUM Type:(82221864500) ②Click the button (Select a service) GSC-8, OTTAWA Slide 9
The end Thank you very much for your kind attention!! If you have any questions, please, send me an email(sjlee@nic.or.kr). GSC-8, OTTAWA Slide 10
