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Initial Deployment of ENUM in Singapore ( VoIP Special Interest Group )

Initial Deployment of ENUM in Singapore ( VoIP Special Interest Group ). Yin Ma Thwe Singapore Polytechnic 5 th July 2004. Outline. Introduction to VoIP Introduction to ENUM What VoIP SIG have done. Scope of VoIP SIG .

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Initial Deployment of ENUM in Singapore ( VoIP Special Interest Group )

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  1. Initial Deployment of ENUM in Singapore( VoIP Special Interest Group) Yin Ma Thwe Singapore Polytechnic 5th July 2004

  2. Outline • Introduction to VoIP • Introduction to ENUM • What VoIP SIG have done

  3. Scope of VoIP SIG Focused on VoIP Technologies and applications and aspects related to the research, experimentation, innovation, early adoption, deployment and maintenance of these resources over advanced networks such as SingAREN and its counterpart research and education networks internationally. http://singaren_voip_sig.i2r.a-star.edu.sg/

  4. Introduction to VoIP

  5. What is Voice over IP (VoIP)? IP Packet ) ) ) 1010101000010100101010101010010101010100101010001001 1010101000010100101010101010010101010100101010001001 Internet/ Private IP Network ( ( ( 1010101000010100101010101010010101010100101010001001 IP Packet 1010101000010100101010101010010101010100101010001001

  6. What is IP Telephony ? ITU Definitions VoIP : Use of Private Networks Internet Telephony : Use of Public Network IP Telephony : VoIP + Internet Telephony SG Definitions This deployment is VoIP (end points are PSTN) IDA has framework for VoIP End points are IP? Hmm…

  7. IP Phone to IP Phone is mainly provided by Service Provider or self Managed (E.g. Free World Dial) 2002 VoIP Deployments Phone to Phone is mainly provided by Service Provider or Private Network (E.g. Singtel’s 019) 1998 PC(Web) to Phone is mainly provided by Service Provider (E.g. Web2Phone) 1999 Wireless IP Phone to Wireless IP Phone will be provided by whom? post 2003

  8. Demo: IP-to-IP Calls Internet

  9. Demo: IP-to-PSTN Calls Internet PSTN

  10. Implications No more time-based telephony charges No concept of local call, long-distance call or IDD call

  11. Change in Business Paradigm Traditional Telecom Model New Telecom Model Value-Added Service Voice Data Service Value-Added Service Voice Service Data Service Infrastructure Infrastructure “The most powerful paradigm shift is the fact that applications are not woven into the platforms. Now to be a phone company, you don't have to weave tightly the voice service into the infrastructure. They (Vonage) turn voice into a application and shoot it across one of these platforms. And, suddenly, you're in your business.” – Michael Powell, Chairman of FCC

  12. Technical Issues Technical Architecture To achieve interoperability between different IP Telephony services, What should be the technical common platform? What are the technical specifications to adopt? Quality of Service What is the acceptable QoS for IP Telephony? How to ensure QoS? Security and Privacy How secure is IP Telephony? What about wiretapping requirements?

  13. Business Issues Interconnection Who can interconnect to PSTN? What is the pricing model? Market Studies What is the economic impact? How would it change the telco landscape? (cost to setup IP Telephony service ~= cost to setup Email service) Numberings What’s is the numbering plans for IP Telephony? How are numbers assigned for IP Telephony services? What if there is no service provider?

  14. Regulatory Issues Classification How do we classify all the different IP Telephony services? Are they subjected to similar “regulation”? Licensing Who needs to apply for license? What if there is no service provider? Universal Access Is it applicable to IP Telephony? How about emergency numbers?

  15. Introduction to ENUM

  16. What is ENUM • RFC 3761 defined by IETF - The E.164 to Uniform Resource Identifiers (URI) Dynamic Delegation Discovery System (DDDS) Application (ENUM) • This document discusses the use of the Domain Name System (DNS) for storage of E.164 numbers. More specifically, how DNS can be used for identifying available services connected to one E.164 number.

  17. What is ENUM Electronic Numbering (ENUM) provides a mechanism to assign an E164 phone number to an IP resource. sip:dickson@poc.tech.org.sg +65 6411 1000 sip:xiayang@sp.edu.sg +65 6411 1201

  18. How does ENUM work take a phone number +65-6411-1234 …and turn it into a domain name! 4.3.2.1.1.1.4.6.5.6.e164.arpa

  19. How does ENUM work 4.3.2.1.1.1.4.6.5.6.e164.arpa ask the DNS mailto: dickson@ida.gov.sg get a list or URIs returned sip: dickson@poc.tech.org.sg http: www.ida.gov.sg

  20. Three Tier Model Tier 0 – e164.arpa ITU Zone Delegation, i.e. e164.arpa to 5.6.e164.arpa Tier 1 – 5.6.e164.arpa Country Level (Singapore) Zone Delegation, i.e. 5.6.e164.arpa to 1.1.4.6.5.6.e164.arpa Tier 2 Has the NAPTRs in it, i.e. for 4.3.2.1.1.1.4.6.5.6.e164.arpa

  21. How does ENUM work

  22. DNS-Server Sip server Gateway ENUM in IP Telephony Query 4.3.2.1.1.1.4.6.5.6.e164.arpa.? Response sip:dickson@poc.tech.org.sg “Call setup” Dial +65 6411 1234 SIP dickson@poc.tech.org.sg

  23. Switch STP What problem does ENUM solve? • Legacy phone calls to IP phone • Two different routing domains, need mapping IP-Network SS7 PSTN / ISDN

  24. Technology adoption life cycle Late majority (conservatives) Early adopters (visionaries) (Geoffrey Moore, Chasm Group) Main market Early majority (pragmatists) Laggards (sceptics) Innovators (technical people)

  25. Technology adoption life cycle Late majority (conservatives) Early adopters (visionaries) ENUM Main market Early majority (pragmatists) Laggards (sceptics) Innovators (technical people)

  26. Country Code Delegations • 86 China • 246 Diego Garcia • 247 Ascension • 290 Saint Helena • 353 Ireland • 358 Finland • 374 Armenia • 420 Czech • 421 Slovakia • 423 Liechtenstein • 971 UAE • 31 Netherlands • 33 France • 36 Hungary • 41 Switzerland • 40 Romania • 43 Austria • 44 UK • 46 Sweden • 48 Poland • 49 Germany • 55 Brazil • 65 Singapore

  27. Worldwide ENUM Activities • Austria http://enum.nic.at/ • China http://www.enum.cn/index-en.html • France http://www.numerobis.prd.fr/welcome.shtml • Germany http://www.enum-center.de/ • Netherlands http://www.enuminnederland.nl/ • Korea http://www.enum.or.kr/en/ • Sweden http://enum.autonomica.se/ • UK http://www.ukenumgroup.org/ • US http://www.enum-forum.org/

  28. AP ENUM Activities (Australia) • ACA released “Expression of Interest” for Tier 1 Registry Operator for Australian ENUM Trial closing date 7 July 2004 • ENUM Trial will run for 12 months, with the option of a 12 months extension. • Workshops and seminars organised, and ENUM discussion group formed • ENUM Website: http://www.aca.gov.au/telcomm/telephone_numbering/enum_nsg2/index.htm

  29. AP ENUM Activities (China) • Led by Ministry of Information Industry • Study of technical and administrative issues • Detailed ENUM trial plan is being prepared • Active involvement in ITU-T (SG2) discussions • Security and reliability issues very important • Several carriers / vendors / service providers show great interest • Web Site: http://www.enum.cn/Enum/EnumReg/English/home.php

  30. AP ENUM Activities (Japan) • MPHPT studying regulatory issues • Signed MoU with South Korea on ENUM DNS in Feb 2004 • Considering ENUM trial • Interest in security and privacy issues • Administrative and operational arrangements under study • Web Site:http://etjp.jp/english/index.html

  31. AP ENUM Activities (Korea) • ENUM National Trial implementation (funded by Korean Ministry of Information and Communication) • ENUM test bed project established Feb 03 • Broad involvement from DNS and telephony community • Interest in commercial applications and ENUM APIs • ENUM Website: http://www.enum.or.kr/kr/intro.html

  32. AP ENUM Activities (Taiwan) • Joint government, research, telecommunications company and ISPs involvement • Establishment of ENUM test bed • Seminars, workshops and study groups • Interest in determining successful business models • http://trial.enum.org.tw

  33. ENUM Activities (Singapore) • Singapore received its country code top level delegation • Exploring the technical issues relating to ENUM • Working towards an ENUM trial • Liaising with industry regarding ENUM issues

  34. ENUM Activities (APEET) • Asia Pacific ENUM Engineering Team consists of ccTLD administrators: • SGNIC, CNNIC, JPRS, KRNIC, TWNIC • Objective to conduct ENUM/SIP trials using the common golden root of “apenum.org” • Website: http://www.apenum.org/

  35. Infrastructure ENUM • “Infrastructure ENUM” (e.g. ibm.com, apenum.org) taking off more rapidly than “Individual ENUM” (e164.arpa) • May be driving force due to ease of mirroring DNS records from one domain to another

  36. ENUM Implications ONE number for telephone, fax, e-mail, web site address E164 numbers available for IP Telephony Driving factor for IP Telephony, leading to convergence of PSTN and Data Networks

  37. Considerations for ENUM Implementation Administration Who should administer ENUM database at a national level? How do we choose the administrator? Should there be multiple entities managing multiple number ranges? Charging Model What should be the cost of ENUM registration? Should there be a bidding process for golden numbers?

  38. Considerations for ENUM Implementation Numbering Plan Should there be a new range of numbers to delineate ENUM numbers? How do we ensure there is no “clash” with current PSTN numbers? How to ensure ENUM services complies with number portability arrangements Privacy & Security Should participation in ENUM by telephone users be compulsory or should there be an opt-in? What are the procedures for protecting the security, integrity and privacy of the ENUM database?

  39. What VoIP SIG have done

  40. PSTN Gateway PSTN Gateway PSTN Gateway IP Telephony/Enum Trial Architecture Overseas Intranet ENUM NS Government Zone ENUM NS Commercial Zone SIP Server SIP Server SIP Server Internet SIP Server PSTN PSTN ENUM NS Research & Education SIP Server

  41. SingAREN VoIP Network PSTN ENUM NS NTU ENUM NS 1.1.1.1.4.6.5.6.e164.arpa PSTN Gateway 5.6.e164.arpa IDA SIP Server SingAREN PSTN SIP Server PSTN Gateway I2R ENUM NS SP SIP Server ENUM NS 3.1.1.1.4.6.5.6.e164.arpa 2.1.1.1.4.6.5.6.e164.arpa

  42. SingAREN VoIP Network • ENUM Delegation to • NTU – 65-6411-11xx • Singapore Poly – 65-6411-12xx • I2R – 65-6411-13xx • Trial deployment of open-sourced SIP server (Asterisk) at NTU, Singapore Poly, I2R and IDA • Local PSTN connectivity via Cisco 2600 in IDA

  43. 6564111203 6564111204 6564111202 Telcordia Softswitch FXS Media Gateway 6564111201 IP Address:164.78.247.104 Wireless Access Point FXO Media Gateway PSTN Backbone Network IP Address:164.78.247.105 Vocal Server Asterisk PBX Singapore Polytechnic SIP Network Setup 6564111221 IP Address:164.78.247.121 IP Address:164.78.247.103 6564111228 IP Address:164.78.247.128 SINGAREN Network 6564111210 IP Address:164.78.247.110 6564111211 IP Address:164.78.247.111 IP Address:164.78.247.101 6564111212 IP Address:164.78.247.112 IP Address:164.78.247.102

  44. ENUM DNS 6564111211 6564111210 Asterisk PBX 1.1.2.1.1.1.4.6.5.6.e164.arpa sip:6564111211@164.78.247.111 6564111211 I2R SIP PROXY IDA SIP PROXY IDA ENUM DNS I2R ENUM DNS SP Network SINGAREN Network NTU Network I2R Network IDA Network Network Connection Request Response RTP Session NTU SIP PROXY DEMONSTRATION OF ENUM CALLS

  45. ENUM DNS 65641111000 6564111210 Asterisk PBX 0.0.0.1.1.1.4.6.5.6.e164.arpa sip:dickson@ida.gov.sg 65641111000 I2R SIP PROXY I2R ENUM DNS IDA ENUM DNS IDA SIP PROXY SP Network SINGAREN Network NTU Network I2R Network IDA Network Network Connection Request Response RTP Session NTU SIP PROXY DEMONSTRATION OF ENUM CALLS

  46. Thank You

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