ENUM Trial Status
in Korea
Contact:Sungwoo Shinssw@nic.or.kr
Dr. Weon Kim
wkim@nic.or.kr
www.enum.or.kr

Contents
ENUM Activities

National / International / Research Project

ENUM TrialOverview
 Trial System Formation & Figure & Specification
 ENUM Numbering Plan
 Trial Service Flow Trial System Demo ENUM Registration Process
 ENUM Trial Service UseTrial Service Statistics

ENUM service council in Korea
Status of National ENUM Standardization
Next Steps…
SSW – 1

ENUM Activities (National)
Since Oct. 2000
Studies of the international standardization activities Participation in IETF, ITU-T SG2 WP ½, US ENUM Forum ENUM Promotions in Korea


URI projects
URI Protocol Standardization Project
 URI Standardization Forum : ENUM Committee

ENUM Workshops & Seminars
IT Forum Korea / KIOW(2002/2003)
 URI Standardization Forum Workshop(2002/2003)
 The 1st Next Generation Internet Identifiers workshop (2002)


 US ENUM Forum, Korean Companies ….
The 2nd Next Generation Internet Identifiers workshop (2003)
 JPRS, CNNIC, Austria, ITU, VeriSign, ……

SSW – 2

ENUM Activities (International)
Cooperation with TWNIC & Chunghwa Telecom,Taiwan (Dec.’02)
APRICOT 2003 (Feb. ’03) in Taipei
APRICOT : Asia Pacific Regional Internet Conference on
Operational Technologies

8th GSC in Ottawa (Apr. ’03)
GSC : Global Standards Collaboration

Internet Computing 2003. in LV(Jun. ’03)
57th IETF ENUM WG in Vienna (Jul. ’03)
ITU-TSB Director Houlin Zhao in Seoul(Aug. ’03)
APT-ITU Joint ENUM Workshop in BKK (Aug. ’03)
CNNIC Cooperative Meeting and MoU in Beijing(Nov. ’03)
JPRS Cooperative Meeting in Tokyo (Nov. ’03)
SSW – 3

ENUM Research Project

URI Protocol
Standardization Project(2002~)

URI Standardization Forum
URL/ENUM Working Group(2001~)

InternationalCooperation &Academic Research

Basic Specification for the implementation ofENUM Trial Implementation

SSW – 4

ENUM Trial Overview
Mission

To examine the technical availability of ENUM

Setup PeriodMar. 2003 ~ Oct. 2003
 Internal trial system set-up finished (Jul.2003)
ENUM Public Trial Service (finished)
From 13th. Oct. 2003 to 9th. Jan. 2004
 ENUM Trial Registration, ENUM Telephony(VoIP) UseBudget : Approx. US$300,000
Project of Internet Address Resource Management SystemImplementation
 URI Protocol Project(Funded by Ministry of Information and Communication)
SSW – 5

ENUM Trial Formation
ENUM APIs
Based on Windows(98/ME/2000/XP), IE Tool Bar andIE 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

SSW – 6

ENUM Trial System Figure

SSW – 7

ENUM Trial System Feature
E1(60Ch.) 2 Lines

KRNIC
Internal
NetworkInternet

ExternalTelephone
Network

VoIP Gateway
CISCO 3662

ENUM DNS Tier 1
SUN280R
BIND 9.2.2
VoIP Phone
CISCO 7960

PC

ENUM DNS Tier 2
SUN280R
BIND 9.2.2
Apache 1.3.27
SIP Server
SUN280R
VOCAL 1.4.0
SSW – 8PSTNMobile

ENUM Numbering Plan
Both Telephone Number and Mobile Number can be ENUM
Number+82-2-563-5757

Homepage www.enum.or.kr
Telephone 02-563-5757
Mobile017-227-2186
E-mailenum-info@nic.or.kr+82-17-227-2186

SameResults

Homepage www.enum.or.kr
Telephone 02-563-5757
Mobile017-227-2186
E-mailenum-info@nic.or.kr* Number of Telephone Service Subscribers- Wire Telephone : 23,000,000(41%)- Mobile Phone : 33,000,000 (59%)※ Not considering Specific prefix for ENUM number
SSW – 9

ENUM Main Website
ENUM Trial Website : www.enum.or.kr (kor/eng)

SSW – 10

ENUM Registration Flow
ENUM Registration System
ENUM DNS
Tier 1Web Server&Web Program

ENUM
InformationSending
Library
ENUM DNS
Tier 2

Database

SSW – 11

ENUM Registration System
ENUM Information Registration
ENUM No. (Mobile/Wired Both )ENUM DNS System
Dynamic Update
Completing
Registration

2.8.e164.arpa
0.0.5.4.6.8.1.2.2 NS enum.nic.or.kr

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.kr100 10 “u” mailto:enum@nic.or.kr
100 10 “u” http://www.nic.or.kr

SSW – 12

ENUM APIs for Users
ENUM API Download and Installation

API on Windows

ENUM Website Fill-in

IE Direct Fill-in

ENUM
DNS

IE Toolbar

SSW – 13

ENUM Telephony Call
PC to PC VoIP using ENUM
ENUM Query
SIP Message
Voice Channel

ENUM
DNS:::ENUM SIP System⑷⑶

ENUM SIP
Redirect Server

ENUM SIP
SIP Proxy(UA)⑸⑹⑺ENUM SIP
SIP Proxy(GW)⑵⑴ ENUM Telephony
Program⑻

SSW – 14IP Phone /ENUM Telephony
ProgramENUM Telephony CallPC to PSTN VoIP using ENUM
ENUM Query
SIP Message
Voice ChannelENUM
DNS:::ENUM SIP System

⑷
⑶
⑵
⑴

ENUMTelephony
Program

ENUM SIP
Redirect Server

ENUM SIP
SIP Proxy(UA)⑸ENUM SIP
SIP Proxy(GW)

⑹

⑻
PSTN

VoIP Gateway

E1⑺

SSW – 15

ENUM Service Use

ENUM APIs….

Web visiting by
ENUM Registration
Information

ENUM Registrant
E-mail by ENUM
(with Outlook)

ENUM Phone Call
via VoIP/PSTN
withTelephony Program
SSW – 16

Trial Usage Statistics
Trial Period : Oct. 13th 2003 to Jan. 9th 2004

ENUM Registration :1,495ENUM 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

SSW – 17

Korean ENUM Service Council
Overview
Started as of Sep.,2003
 To seek common interest among related Org.
 Members : KRNIC, MIC
Dacom, Hanaro, KT, KTF, LGT, SKT
General GoalsPresent•Joint Promotion• Privacy Guideline• Delegation of National Code• Tier 1 Registry Selection•Joint Development for
Extended System• Standardization Works

Future Work•Profit Model• Commercial Service

SSW – 18

National Standardization Issues


URI Standardization Forum - ENUM committee
 ENUM Trial Working Group
Started as of 2003. 6. 20
 Consider next step of ENUM Trial Service and Affiliations withmajor Telcos in Korea


TTA TC02(Telecommunication Network Technical Committee)
 ENUM Task Force Team
Started as of 2002. 10.
 Following up international ENUM standardization activities Standardization for the national application of ENUM


SSW – 19

ENUM Standardization ProcessForum Members

Preparation forthe Forum Standards Proposal
After the proposal to the committee,
notification of adoption by the chair

URI Standardization ForumStandards

Preparation for Proposed Standards- Technical Specification- International Standards Reference

reviewing by the committee, revision

Settlement and Decision ofProposed Standards
After the settlement of the committee chair,decision of the steering committee

Selection among Forum standards
for proposing TTA Standard

TTA Standards- Technical Proposal from theInternational Standards

Standardization
by ENUM Task Force TeamSSW – 20

Standardization Status
Applied of RFC and Drafts• 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

New Standards Development• ENUM DNS Tier 1,2 Architecture• Communication Procedure between ENUM Client and DNS• ENUM Service Registration for Wireless Internet Sites

SSW – 21

Standard Drafts from Trial System
ENUM
Telephony

ENUM User

ENUM, SIPConnection① ENUM(82-2-2186-4500) query
0.0.5.4.6.8.1.2.2.2.8.e164.arpa resolution e164.arpa③ choose service

ENUM DNS
Tier 0- 4 APIs

④Cconnect

ENUM DNS

Communication ofENUM
Client & DNS

0.0.5.4.6.8.1.2.2.2.8 ns:

UMEN
Qu

Registration Sys.

yers
repoensnPlain① Registration
RequestSSW – 22

ENUM DNS
Tier 1,2
ArchitectureENUM
DNSTier 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

tio
rastgiRe

PC

Name(ID)
Phone No.
E-mail address
websiteVoIP No.

UMEN

VoIP

PSTN

③

InternetNetwork

2.8.e164.arpa②MobileENUM DNS Tier 1ENUM
DNSTier 2

Next Steps…
ENUM Service Plan2003
ENUM Trial Service: requirements for
ENUM Implementation

2004
ExtendedTrial Service

2005
Commercial
Service…

APRICOT 2004 ENUM SIP BoF in KL(Feb.,2004)
 Propose “ASIA ENUM Cooperation Committee”
 JP, KR, CN, TW, SG, MY…

SSW – 23

THANKYOU

SSW – 24