1. KR ENUM Trial Status Update Contact: Sungwoo Shin ssw@nic.or.kr www.enum.or.kr Korean ENUM Service Council

2. 1 Contents ENUM Trial Overview Trial System Formation Trial System Feature ENUM Numbering Plan Trial Service Flow Trial Service Statistics ENUM service council in Korea Status of National ENUM Standardization Next Steps…

3. 2 KR ENUM Now ENUM Trial System Set-up (2003~) ENUM Public Trial Service (1 st Phase) (Oct. 2003 ~ Jan. 2004) Analysis on Trial Result Korean ENUM Service Council (Sep. 2003~) National Standards equivalent to RFCs & New Standards Development (2003~) AP ENUM Technical Forum(APETF) Discussion (2004~) International ENUM Workshop in Seoul (Dec. 2003) National trial (Austria, China, Japan, Korea) ITU and Commercial Part

4. 3 ENUM Trial Overview Mission To examine the technical availability of ENUM Setup Period Mar. 2003 ~ Oct. 2003 Internal trial system set-up finished (Jul.2003) ENUM Public Trial Service (finished) From 13 th. Oct. 2003 to 9 th. Jan. 2004 ENUM Trial Registration, ENUM Telephony(VoIP) Use Budget 2002~2003 : Approx. US$400,000 for ENUM Trial Set-up 2004~ : US$250,000 (Confirmed) for Extension 2005~ : US$300,000 (under discussion with MIC)

5. 4 ENUM Trial Formation ENUM APIs Based on Windows(98/ME/2000/XP), IE Tool Bar and IE Built-in ENUM number direct fill-in, Service array and connection ENUM Telephony System IP-PSTN Connection Telephony Service Based on SIP Technology ENUM DNS ENUM Tier 1 / 2, Dynamic Update from Registration System ENUM Registration System Web-based Registration

6. 5 ENUM Trial System Feature CISCO 7960 VoIP Phone CISCO 3662 VoIP Gateway PC Internet KRNIC Internal Network External Telephone Network SUN280R BIND 9.2.2 ENUM DNS Tier 1 SUN280R BIND 9.2.2 Apache 1.3.27 ENUM DNS Tier 2 SUN280R VOCAL 1.4.0 SIP Server E1(60Ch.) 2 Lines PSTN Mobile

7. 6 ENUM Numbering Plan Both Telephone Number and Mobile Number can be ENUM Number Not considering Specific prefix for ENUM number Homepage www.enum.or.kr Telephone 02-563-5757 Mobile 017-227-2186 E-mail enum-info@nic.or.kr +82-2-563-5757 Same Results Homepage www.enum.or.kr Telephone 02-563-5757 Mobile 017-227-2186 E-mail enum-info@nic.or.kr +82-17-227-2186 * * Number of Telephone Service Subscribers - Wire Telephone : 23,000,000(41%) - Mobile Phone : 33,000,000 (59%)

8. 7 ENUM Telephony Call PC to PC VoIP using ENUM ENUM SIP Redirect Server ENUM SIP SIP Proxy(UA) ENUM SIP SIP Proxy(GW) ENUM Telephony Program IP Phone / ENUM Telephony Program ENUM DNS ENUM SIP System ENUM Query : SIP Message : Voice Channel :

9. 8 ENUM Telephony Call PC to PSTN VoIP using ENUM ENUM SIP Redirect Server ENUM SIP SIP Proxy(UA) ENUM SIP SIP Proxy(GW) ENUM Telephony Program VoIP Gateway ENUM DNS ENUM SIP System ENUM Query : SIP Message : Voice Channel : PSTN E1

10. 9 Trial Usage Statistics Trial Period : Oct. 13 th 2003 to Jan. 9 th 2004 ENUM Registration :1,495 ENUM Telephony Service Use : 14,697 PC to PC(IP Phone) : 5,117 PC to Mobile : 8,022 PC to PSTN : 1,558 ENUM Web Visitors (accumulated): 181,734 Oct. : 37,861, Nov. : 70,625, Dec. : 73,248 Survey from ENUM Service Users for Extended Trial and System Modification

11. 10 More APIs ENUM FAXENUM H.323

12. 11 More APIs Telephony on Website

13. 12 Korean ENUM Service Council Overview Started as of Sep.,2003 Members - MIC(Government), KRNIC - Dacom, Hanaro, KT (Wired Telco.) - KTF, LGT, SKT (Mobile Telco.) - Saerom, Yahoo KR, KThitel …..(TSB. Exceptional Telcos) General Goals Joint Promotion Privacy Guideline Delegation of National Code Tier 1 Registry Selection System and Service Extension Standardization Works Profit Model Setup Commercial Service Present Future Work

14. 13 Korean ENUM Service Council Questions of the Korean Council What is the business model for ENUM? - The reason the other countries keep working on ENUM implementation. What is the ENUMs affect on Telecommunication Policy? - The relationship between ENUM and VoIP What is the charm of ENUM to attract users? - Is it attractive to users as domain name is? Telcos Govern -ment (MIC) KRNIC

15. 14 Standardization Status Applied of RFC and Drafts New Standards Development RFC 2916bis ENUM Service Registration for H.323 URL Enumservice registration for SIP Address of Record Registration for enumservice web and ft Registration for enumservice of group messages ENUM DNS Tier 1,2 Architecture Communication Procedure between ENUM Client and DNS ENUM Service Registration for Wireless Internet Sites

16. 15 Standard Drafts from Trial System 2.8.e164.arpa ENUM DNS Tier 0 e164.arpa ENUM DNS Tier 1 ENUM DNS Tier 2 0.0.5.4.6.8.1.2.2.2.8.e164.arpa NAPTR sip:82221864500@ nic.or.kr mailto:enum@ nic.or.kr http://www.nic.or.kr Internet Network PSTN ENUM DNS ENUM User ENUM Telephony VoIPPCPlain ENUM(82-2-2186-4500) query 0.0.5.4.6.8.1.2.2.2.8.e164.arpa resolution ENUM Query response choose service Cconnect Registration Sys. Name(ID) Phone No. E-mail address website VoIP No. ENUM Registration - 4 APIs Registration Request Mobile 0.0.5.4.6.8.1.2.2.2.8 ns : ENUM DNS Tier 1 ENUM DNS Tier 1,2 Architecture Communication of ENUM Client & DNS ENUM, SIP Connection ENUM DNS Tier 2

17. 16 Next Steps… ENUM Service Plan ENUM Trial Service : requirements for ENUM Implementation Extended Trial Service Commercial Service… 200320042005 To Do Policy Setup - Tier 1/ 2, ASP Requirements - Regulations for ENUM Service - Authentication & Authorization Requirements - Business Model Technical Extension - System Interoperation - System Extension Fax, H.323 VoIP, Telephone embedded ENUM

18. 17 THANK YOU