Taiwan SIP/ENUM TrialTaiwan SIP/ENUM TrialProject Project

Vincent W.S. ChenExecutive Director, TWNIC

Email: wschen@twnic.net.tw

October 1, 2003

2

AgendaProject StructurePhase I Trial ObjectivesSIP/ENUM Trial ArchitectureApplication Services in TrialRegistry/Registrar and Service RolesServices Scenario ExampleAlternatives for Enum RoutingFuture WorksIPOX consortium Introduction

3

Trial Project Structure

• CCL• Project Management Team • CCL• TWNIC

Project Planning Technical Development &

Support

ENUM & Number Management 0944-0xxxxx

• TANet• NTPO(NBEN)• HiNet/TL• NCTU/NTHU/NTU• Sparq• EBT/APOL

Service Provisioning

Project Management

SIP/ENUM Trial Project

4

Phase I Trial ObjectivesTime frame: 2003.03 – 2003.12Objectives

SIP/ENUM Architecture/configurations testWhat kind of architecture is suitable to Taiwan?

Infrastructure EstablishIntegrate multiple vendors in Taiwan. Telephony Service ProviderInternet Service ProviderRegistrarRegistry

Basic SIP/Enum Service Deployment

5

Taiwan SIP/ENUM Trial Architecture

TANet/NBEN

Tier 2 NS

Softphone(0944-0xxxxx)

PSTN Trunk Gateway

Signaling Gateway

LEC PBX

Taipei OperatorEBT

PSTNTrunk

Gateway

Signaling Gateway

LEC PBX

Hsinchu OperatorSparq

Tier 1 NS

ISP(IPv4/6)ISP

(IPv4/6)Softphone(0944-0xxxxx)

IPv6-IPv4Gateway

IP PBX

CCL/ITRIIP PBX

NCTU/NTHU/NTUTWNIC

Media Server

Softswitch(MGC))

Softswitch(MGC)

SIP Proxy

IP Phone(0944-0xxxxx)

Softphone(0944-0xxxxx)

SIP Proxy

6

1. Softphone Softphone Application Services – 20032. PSTN Softphone

3. PSTN PSTN

4. Voice Mail

Tier 2 NS

Softphone(0944-0xxxxx)

PSTNTrunk Gateway

Signaling Gateway

LEC pbx

Taipei OperatorEBT

PSTNTrunk

Gateway

Signaling Gateway

LEC PBX

Hsinchu OperatorSparq

Tier 1 NS

ISP(IPv4/6)ISP

(IPv4/6)Softphone(0944-0xxxxx)

IPv6-IPv4Gateway

IP PBX

CCL/ITRIIP PBX

NCTU/NTHU/NTUTWNIC

Media Server

Softswitch(MGC))

Softswitch(MGC)

SIP Proxy

IP Phone(0944-0xxxxx)

Softphone(0944-0xxxxx)

SIP Proxy

TANet/NBEN

7

Internet

SIP/ENUM Trial Project SIP/Enum Trial –Scope Extension

supported by DGT

TWNIC

PBX Gateway

PBXNortel M1

ENUM Server

SIP Proxy

G/W

PBX

G/W

PBX

G/W

PBX

G/W

PBX

Public Switching Telephony Network

Call Server

DGT NICIMOECC

TCA研考會

SIP Phone

SIP UA

SIP Phone SIP PhoneSIP Phone SIP Phone SIP Phone

Phone Phone Legacy Phone Phone PhoneFXO FXO E1 ISDN FXO FXO

8

Registry/Registrar and Service Roles

Tier 2 Registry & Nameserver

Tier 1 Registry

ITSP(TANET/NBEN)

ITSP(HiNet/Sqarq/CHT…)

Registry(ENUM Service)

Tier 2 Registry& Nameserver

Tier 2 Registry& Nameserver

RegistrarRegistrar(s) Registrar(s)

Application Services(ITSP/ASP)

EnterpriseCCL/TWNIC/…

CellularSubscribers

UniversitiesNTU/NCTU/NTHUEnterprise PSTN Users End Users

9

ENUM DNS Architecture

Tier 0

NS record NAPTR record

Tier 1

e164.arpa

6.8.8.e164.arpa

Tier 0

Tier 1

Tier 2

e164.arpa

6.8.8.e164.arpa

Tier 0

Tier 1

e164.arpa

6.8.8.e164.arpa

Tier 2 Tier 2 Tier 2

Tier 0

Tier 1

e164.arpa

6.8.8.e164.arpa

Tier 2 Tier 2 Tier 2

Tier 3 Tier 3 Tier 3Tier 3

1 Tier 2 TiersMultiple Tiers2 Tiers

Tier 1 Grouping

10

Services Scenario ExampleTier 1 NS

Tier 2 NS

NCTU/NTU/NTHUCCL/ITRITWNICHINET

SIP Proxy

IP Phone

SoftphoneIP PBXIP Phone

PSTN Gateway

PSTNPSTN

TANet/NBEN

Enterprise

Softswitch

12

3

Tier 2 NS

Mobile phoneIP PhoneWeb Portal - Registrar PCA – SIP UA

11

Alternatives for Enum routing

6.8.8.e164.arpa delegation issuesetup a forward zone in DNS server for 6.8.8.e164.arpa.Other alternatives

e164.arpa. servers

forward 6.8.8.e164.arpa

Root servers

.arpa servers

nnn.e164.arpa.

…

nnn.e164.arpa. servers

ENUM DNS

SIP proxy servers 6.8.8.e164.arpa.

12

Future WorksEvaluate phase 1 system performance.

Cache (TTL) issue (timely update)Zone file transfer (time delay) …..

Business Operation Model ConsiderationVOIP business modelsEnum business modelsOther issues: authentication, privacy, security, etc..

New Services DevelopmentMMSIMSiFax…

Alternatives for Enum Routing and Internationalcooperation

IPOX (IP Phone Open IPOX (IP Phone Open eXchangeeXchange) ) ConsortiumConsortium

Initiative for IP Phone Commercial Deployment Promotion Initiative for IP Phone Commercial Deployment Promotion in Taiwanin Taiwan

14

Taiwan SIP/Enum Forum

ISP，TANet，GSN

Taiwan SIP/Enum

Trial Network

Introducing Japan

Experience

Promotional ActivitiesTechnology Proliferation

SIP/Enum VoIPDemonstrative Site IPOX Consortium

Common Numbering

System

Regulation Modification

Proposal

T.S.G. for miscellaneous

Technical issue

Interflow with VoIP Forum

(manufactures)

15

Major goals of IPOXAs an initiative of triggering the merge of Telecomm and Internet Services through promoting IP Phone services to general public. The tentative goal of IP phone deployment are

At least 3 local ISP will provide “070” based SIP IP Phone services before the end of 2003The total number of IP Phone subscriber may exceed half million by the end of 2004.

Provide new growth momentum for local Broadband Internet Access

Quantity, penetration rate, access speed and QoS

Brought up IP Phone local market in order to leverage the already booming VoIP manufacturing industry

Service Provider and Maker collaboratively improve competitiveness and added value to the manufacturing industry.

16

IPOX StrategiesISP，TANet，GSN multi-peer IP Phone Interchange cooperationTargeted at IP Intra-net, avoid IP-PSTN issuesPromote Personal/Enterprise VoIP simultaneous

Personal VoIPMimic Japan model

Enterprise VoIPAdaptive approachIntegrate existing VPN closed VoIP install base

SIP/Enum standardSIP/Enum standard will be adopted as much as possibleH.323/SIP inter-working mechanism needed for integrating H.323 install base

17

Dual Network Approach for Enterprise User

PSTN

Carrier Switch

Phone

PBX PBX PBX PBX

070 IP Phone Network

H.323VoIP GW

H.323VoIP GW

H.323 Gatekeeper support Enum

SIPVoIP GW

SIPVoIP GW

Existing VPN H.323 VoIP User New SIP VoIP User

ENUM ServerSIP/H.323 InterchangeCenterCall Server

18

Difference btw IPOX and what happened in Japan

Japan IPOX

Market Trigger Fired by Yahoo! BB, followed byother ISP

Initiated by Governmentsponsored promotion project

Scope of 'Intra-net'call(IP free phone)

Some ISP formed 'free phone'consortium

Intend to invite almost all of localISP

Market biasing Personal market initially Parallel develop Personal/Enterprise Market

Adoption of SIP/Enumstandard Not applying initially

Adopt SIP/Enum as much aspossible

19

IPOX Tentative Progress Schedule

Jan-03 Jul-03 Jan-04 Jul-04 Jan-05 Jul-05

Major MilestoneSigning Consortium，some ISP launch IP

All member ISPprovide IP Phone

300,000Subscriber

1,000,000subscriber

SIP/EnumTrialNetworkTesting/CertificationEnvironment

GSN /TANet Demonstrative Site Promotion Promotion PromotionNumberingPlan/ReulationChange Proposal

Finalize IP Phone 'Prefix'，Propose regulation change

Completeregulation change

Start IP/PSTNInterworking

20

IPOX Phase IForming a multi-ISP consortium jointly promote SIP/Enum IP Phone services

including new type 1 operator,TANet (Educational Internet), GSN(Government Services Network) R&D institute and VoIP manufactures operation of IPOX consortium may will be very similar to VoIPDevelopment Council in Japan.

Three WG will be formed under IPOX consortiumCommon Numbering and SIP/H.323 Interworking, Interop/ QoS/ Testing and Regulation.

Several promotional activities, including VoIP Topic booth in related exhibitions, technological proliferation, seminar, etc.

21

The 「070」Ad hoc IP Phone Prefix

The 「070」prefix have been proposed by the consortium

The prefix will be applied by member ISP to deploy IP Phone Services

SIP/Enum standard should be adapted for IP Phone Services interoperation(“the core”), H.323 subsystem should be gateway to SIP/Enum inter-operation network.The 「070」prefix will be applied for IP Phone 『intra call』only, interconnection of 「070」 with PSTN will be adapted only after related regulation have been modified

22

IPOX Phase II

QoS Criteria and Evaluation EnvironmentConformance and Interop TestingSIP Video Phone ServicesWi-Fi SIP Phone ServicesEnum Value Added Services/Services CapabilityPromotional/Interop Demonstration

23

Q & A