1. Xiaodong(Sheldon) Lee, CNNIC 2004-03-03, Seoul, IETF59
Status on
Xiaodong(Sheldon) Lee, CNNIC
, Seoul, IETF59

2. Contents Background Integrated ENUM trial platform
ENUM performance test
Participation on the ENUM activities
China MII-ENUM Study Group
Next steps

3. Background
Up to the end of 2003, about 80 million Internet users, more than 260 million mobile phone users and more than 255 million non-mobile phone users in china, VoIP is not very popular but very important for Chinese users
CNNIC is co-operated by Ministry of Information Industry of China, and Chinese Academy of Sciences

4. Background Cont’d
Jul. 2001, CNNIC start the ENUM project and setup a simple ENUM trial system 3 months later
Feb. 2002, MII(Ministry of Information Industry, China) made decision on ENUM trial plan
Sep. 2002, 6.8.E164.arpa delegation by RIPE-NCC and ITU-TSB

5. Background Cont’d
Oct. 2002, CNNIC run one of the slave servers of e164.arpa
July, 2003, CNNIC upgrade the ENUM trial system on both registration and resolution, and provide the free SIP registration for testing purpose for common users, opened for public test in Dec. 2003
Sep. 2003, CNNIC ENUM performance test

6. Integrated ENUM Trial Platform
ENUM resolution platform
Tier 0---current e164.arpa
Tier E164.arpa
arpa-ns0.enum.net.cn;arpa-ns1.enum.net.cn
Tier 2
Now, the telephone numbers are managed by province or carrier code, you might judge which province or carrier the numbers belong to.
Registration plan is studied but not finished, of course it should cooperate with carriers, telephone number management should be independent with NAPTR records management to prompt NP
Resolution Logs
6923 queries, Dec. 2003
4288 queries, Jan. 2004
7741 queries, Feb. 2004

7. Integrated ENUM Trial Platform Cont’d
ENUM registration platform
Announced to public users in the 2nd whole meeting of Internet Society of China, in Dec. 2003
Trial registration under 6.8.e164.arpa.
Over 260 users and 520 ENUMs are registered
Many people or companies show great interest
9584 page views in Feb.2004

8. Integrated ENUM Trial Platform Cont’d
VoIP experience platform
SIP UAs
IP/GSTN gateway
ENUM enabled SIP proxy
Open for public registration only for testing purpose, along with the ENUM registration website, only ENUM users can register sip account
Up to Feb. 2004, 205 sip accounts are registered
9029 calls among sip users(IP2IP) or through gateway(IP2Phone or Phone2IP)

9. ENUM Performance Test
Internet-based ENUM resolution, to compare the resolution performance with PSTN
Two items are mainly considered
ENUM reply time & reply percentage, e.g.
Remote query with cache, queries (18610 reply, 99%), average 407 millisecond
Remote query without cache, queries (17360 reply, 94%), average 2266 millisecond
ENUM server pressure
How to support tremendous queries
Dynamic update with tremendous queries

10. Participation on the ENUM Activities
ITU-T
Since 2002/02
IETF ENUM WG
Input to the rfc2916bis
Organized or join in several workshop in Asia Pacific
CDNC activities

11. China MII-ENUM Study Group
CNNIC is the key member of MII-ENUM SG, which is under lead by MII, China
Carriers, Institutes, ISPs, and etc. are involved

12. Next Steps Continue the trial system and get feedback
Research on the resolution performance and administrative policy(Tier2), suitable for china
Promotion on ENUM/SIP application is a big challenge
No license for Internet phone to end users is issued in china, but many ISPs, carriers, and software vendors show great interest
Make suggestions to government to open business trial system(Number plan for SIP with ENUM resolution), and consider to deploy some open test with other carriers or ISPs

13. Thanks