台灣 sip/enum trial 現況報告 vincent hsu computer & communications research laboratories...

台灣 SIP/ENUM Trial現況報告

Vincent Hsu

Computer & Communications Research Laboratories (CCL)

Industrial Technology Research Institute (ITRI)

[email protected]

2004網際網路趨勢研討會March 31, 2004

The information contained herein is the exclusive property of CCL/ITRI and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of CCL/ITRI.

Agenda

What is ENUM?

ENUM Trial Project– FY92 Status

– FY93 Planning

What is ENUM?


What is ENUM ?

ENUMMechanism

E.164 Number

Domain Name System (DNS)

URIs (User Services)

ENUM is a Mechanism to Transform

an E.164 Number into a List of Uniform Resource Identifiers(URI)

So that an IP User and Available Services Can be Identified

by a Public Telephone Number.

Problem: How to Address (or Locate) a User in IP Telephony World or PSTN/IP Integrated Network ?


ENUM DNS Domain

Tier 0(RIPE NCC)

DNS Root

Tier 1

Tier 2

1.e164.arpa

…

…

NAPTR records for +1-792-xxxxx

e164.arpa

2.0.2.1.e164.arpa 2.9.7.1.e164.arpa

NAPTR records for +1-202-xxxxx

Organization B NameserverOrganization A Nameserver


Example ENUM Scenario

SoftswitchIAD

ENUM Server

Gateways

Voice Mail Server

1

5

Dial:03-5915631

2

IP Phone

3

0910961527

4 1. User Dial Tel. No

IP Network

DNS

$ORIGIN 1.3.6.5.1.9.5.3.6.8.8.e164.arpa.

IN NAPTR 10 100 “u” “E2U+sip” “!^.*$!sip:[email protected]!”

IN NAPTR 10 101 “u” “E2U+tel” “!^.*$!tel:+886910961527!”

IN NAPTR 10 102 “u” “E2U+rtsp” “!^.*$!rtsp:[email protected]!”

2. ENUM Query, get 3 URIs

3. Make SIP Call, No Answer

4. Make Mobile Call, Fail

5. Connect to Voice Mail

Voice Mail Server

SIP Proxy


ENUM Services Registration

IANA Registered– H.323– SIP(Session Initiation Protocol)

Proposal– Group Message: Email, Fax, MMS, EMS, SMS– Presence Service– Web Service– File Service


ENUM Activities

IETF Telephone Number Mapping (enum) Working Group– Architecture and protocols

Internet Architecture Board(IAB) and ITU-T Study Group 2– Collaboration on operational, administration and delegation issues

ENUM Trials– Austria, France, Netherlands, Poland, Sweden, Switzerland, Finland

, UK, VISIONng

– Asia-Pacific


Asia-Pacific Activities Asia Pacific Enum Engineering Team (APEET)

– Formed by CNNIC, JPRS, KRNIC, SGNIC, and TWNIC– First meeting: Feb 25th, 2004, Kuala Lumpur– Public announcement: June 4th, 2004 (scheduled)

CN (www.enum.cn)– Field trial started 2003.03– Public trial started 2003.12 (500+ numbers issued)

JP (www.etjp.jp)– ENUM Study Group: 2002.09 ~ 2003.05– ENUM Trial: 2003.09 ~ (1-year plan)

KRNIC (www.enum.or.kr)– Lab trial: 2003.03 ~ 2003.10– Public trial: 2003.10 ~ 2004.01 (1,495 users)

SIP/ENUM Forum Taiwan(SEFT) (www.enum.org.tw)– Trial project: 2003 ~ 2006


Some Administration & Regulatory Considerations

DNS Security Privacy Service Integrity

– How to define semantics(i.e. user’s expectations) of an ENUM-enabled phone call ?

– Call treatment and charging issues

Legacy PSTN Regulatory Considerations for Integrated PSTN/IP Services


ENUM Impact

Provide Unified Numbering for PSTN/IP Integrated Services

MUCH MORE IMPORTANT, IT

Enables Users to Manage IP-based Multimedia

Services to Respond the E.164 Call by Combini

ng or Ordering All Available Services, e.g., SIP

, PSTN to VoIP, Email, IP-based Voice Mail,

…, etc.

ENUM Trial Project


Program Structure

SIP/ENUM Forum Taiwan

• CCL• Project Management Team • CCL

• TWNIC

Project Planning Technical Development &

Support

ENUM & Number Management • TANet

• NTP• Universities• HiNet/TL• Sparq• EBT/APOL• Service Providers• Equipment Vendors

Service Provisioning

主辦單位

執行單位 (Bi-weekly Meeting)

電信總局、 NTPO、NICI、工業局、經濟部技術處

督導單位

Project Management / Secretariat (NTP)


Goals of the ENUM Trial Infrastructure

– Establish ENUM infrastructure– Build SIP-based IP Telephony platform

Service Trial– New services deployment

Number Management– 1 million E.164 number management– More than 15k users management

Operation Model Trial– ITSP– Registrar– ENUM Service Provider (Registry)– Validation entity

Regulatory Issues Investigation


Milestones of the Trial First Year --- 2003

– Basic ENUM mechanism and ENUM service provisioning– ENUM-enabled SIP VoIP service – IP/ISP/PSTN inter-working– Trial scale: 1,000 users, mostly from RD & universities

Second Year --- 2004– ENUM capable equipments and systems (IPv4 & IPv6)– SIP service extensions– Extensive ENUM-enabled new services trial– IP/ISP/ITSP/PSTN/Cellular inter-working

2005 - 2006 (planning)– Propose for Asia-Pacific trials – Pre-commercial trial

Billing/charging Business model


ENUM Trial Architecture

ENUM Server

PSTNTrunk

Gateway

Signaling Gateway

LEC

Cellular

Signaling Gateway

MSC

Tier 1 NS

ISP/ITSPISP/ITSP

Softphone(0944-0xxxxx)

IP PBX

Universities & Organizations(NTU/NCTU/NTHU/DGT/…)

TWNIC

Softswitch

SIP Proxy

IP Phone(0944-0xxxxx)

Softphone

SIP Proxy

Fixed Network Operators(sparq/EBT/…)

IP Telephony Service Providers(HiNet/APOL/Citron/…)

TANet(IPv4/v6)

Cellular Operators

CCL/ITRI

VoIP Equipment Vendors


Service Architecture

Tier 2 Registry

Tier 1 Registry

ITSP(TANET/NBEN)

ITSP/PSTN/Cellular(HiNet/sqarq/EBT…)

Tier 2 Registry Tier 2 Registry

Registrar Registrar

UniversitiesNTU/NCTU/NTHU

OrganizationsCCL/TWNIC/…

Enterprise PSTN Users CellularSubscribers

Registry(ENUM Service Provider)

Registrar

Registrant(Users)

Application ServiceProviders


ENUM DNS

e164.tw

telephone numbers

Tier0

Tier1

Tier2 . . .

0944-00xxxx0944-01xxxx

0944-02xxxx |0944-09xxxx

兩層次架構Tier1 放 NS record區分群組Tier2 放 NAPTR record跟目前運作模式相近

NS record NAPTR record


Numbering Plan號碼區段參測單位說明09440-0xxxx - 09440-1xxxx 20,000 教育部電算中心含 TANet各區網中心及縣網中心09440-20xxx09440-21~29xxx

1,0009,000

NTPO(NBEN)Reserved

含測試開發人員使用部分

09440-300xx09440-301~303xx09440-304~306xx09440-307-308xx09440-309xx

100300300200100

NICIDGT研考會 (資訊處)TCATWNIC

09440-40xxxx09440-41~49xxx

1,0009,000

電通所（ CCL）Reserved

09440-50~51xxx09440-52~59xxx

2,0008,000

APOL (APTG)Reserved

09440-60~61xxx 10,000 Reserved

09440-70~71xxx09440-72~79xxx

2,0008,000

速博（ Sparq）Reserved

09440-80~89xxx 10,000 TCA 提供 TCA SIP/Enum Forum參測單位

09440-90~91xxx09440-92~99xxx

2,0008,000

CHT (HiNet/TL)Reserved


Application Services (FY92)1. Softphone Softphone

2. Softphone PSTN3. Voice Mail Softphone

PSTNTrunk Gateway

Signaling Gateway

LEC

Taipei Operator(0944-0xxxxx)

PSTNHsinchu Operator

(0944-0xxxxx)

Tier 1 NS

ISP(IPv4/6)

ISP(IPv4/6)

Softphone(0944-0xxxxx)

IP PBX

CCL/ITRIIP PBX

NCTU/NTHU/NTU/…TWNIC

Media Server

Softswitch

SIP Proxy

IP PhoneSIP Proxy

TANet/NBEN

Tier 1 & Tier 2 ENUM Server


Trial Partners & RolesTANet

(Universities)

ISP/Operators

(HiNet, sparq, EBT, … )

Organizations

(CCL, TWNIC, …)

TWNIC

Registrant

(Users)

• 10 universities * 1,000 users (direct subscribers)• 0944 number

• 3,000 users• Public users (original PSTN numbers)• 0944 number (new user)

• 2,000 users• Public users(original PSTN number)• 0944 number (new user)

• 15,000 ENUM registrants

Registry • Tier 2 Registry • Tier 2 Registry • Enterprise ENUM Registry under Tier 1 or Tier2

• Tier 1 Registry

Registrar • Also play as Registrar

• Also play as Registrar

Application Service Provider

• SIP-based VoIP services• New services development

• VoIP services• New services•IP/PSTN inter-working

• IP-PBX


Project Status -- Year 2003

What have been done so far– 100K E.164 number management (0944-0xxxxx experimental number assigned by DGT)– Web-portal ENUM registration system– Tier 1 and Tier 2 ENUM servers set up– SIP-based VoIP infrastructure– Softphone download deployment mechanism– IP/PSTN Interworking– ENUM/IP service provisioning

100K E.164 telephone numbers distribution & management 736 users trial on SIP services

– Trial Service Level Agreements (SLA) defined


Participants & Services Current ParticipantsCurrent Participants

– UniversitiesUniversities NTU, NCTU, NTHU, NCKU, NSYSU, NDHUNTU, NCTU, NTHU, NCKU, NSYSU, NDHU

– OrganizationsOrganizations CCL/ITRI, DGT, TWNIC, TCA, MOECC, NICI, RDECCCL/ITRI, DGT, TWNIC, TCA, MOECC, NICI, RDEC

– Fixed network operators: sparq, EBTFixed network operators: sparq, EBT One E1 line to Hsinchu(sparq), one E1 line to Taipei(EBT)One E1 line to Hsinchu(sparq), one E1 line to Taipei(EBT)

– ISP/ITSPs: HiNet(CHT), APOL, Citron NetworkISP/ITSPs: HiNet(CHT), APOL, Citron Network

Current ServicesCurrent Services– Web-based ENUM registration and service provisioningWeb-based ENUM registration and service provisioning

– SIP softphone / VoIP gatewaySIP softphone / VoIP gateway

– SIP phone to PSTN phoneSIP phone to PSTN phone

– Unified messaging (Voicemail to Email)Unified messaging (Voicemail to Email)


Statistics

Registered subscribersRegistered subscribers– 765 registered subscribers (2003.08 765 registered subscribers (2003.08 ~ 2004.03.25) 2004.03.25)

Total volume of callsTotal volume of calls– 3,142 calls (2003.10 3,142 calls (2003.10 ~ 2004.03.25) 2004.03.25)

Calls routed to PSTN/CellularCalls routed to PSTN/Cellular– 1,036 calls (2004.01 1,036 calls (2004.01 ~ 2004.03.25) 2004.03.25)

Calls routed to media server for voicemailCalls routed to media server for voicemail– 454 calls (2003.11 454 calls (2003.11 ~ 2004.03.25) 2004.03.25)


Registered Subscribers

Month North Central South East Total

200308 8 0 0 3 11

200309 0 0 0 1 1

200310 11 0 2 1 14

200311 89 0 0 0 89

200312 42 0 0 0 42

200401 26 0 0 0 26

200402 60 2 101 17 180

200403 99 83 220 0 402

sum 335 85 323 22 765


Total Number of Calls

Month Number of Calls

200310 135

200311 629

200312 601

200401 236

200402 962

200403 579

SUM 3142


Total Call Duration

Month Time seconds minutes hours

200310 20031021~20031031 6064 101.07 1.68

200311 20031103~20031121 102210 1703.5 28.39

200312 20031202~20031231 59517 991.95 16.53

200401 20040101~20040118 8419 140.32 2.34

200402 20040202~ 20040229 71891 1198.18 19.97

200403 20040301~20040315 31050 517.5 8.63

Sum 279151 4652.52 77.54


Call Distribution

TimeNumber of

callsTotal duration(

secs)Total duration(

mins)Total

duration(hrs)

8:00~11:00 611 45036 750.6 12.51

11:00~14:00 664 35377 589.62 9.83

14:00~17:00 1066 119279 1987.98 33.13

17:00~20:00 490 34680 578 9.63

20:00~23:00 211 32196 536.6 8.94

23:00~02:00 87 10926 182.1 3.04

02:00~08:00 13 1657 27.62 0.46

SUM 3142 279151 4652.52 77.54


PSTN Statistics (1)撥打地區二月份通數二月份秒數三月通

數三月秒數

台北 60 5665 28 3458

宜蘭 5 174 1 32

桃園 7 312 2 639

新竹 28 2329 87 1554

苗栗 2 42 1 13

台中 19 2361 22 1887

彰化 6 1107 4 290

嘉義 4 367 2 76

台南 29 1987 34 1543

高雄 21 1455 14 1534

台東 3 415 2 318

市話總計 184 16214 197 11344


PSTN Statistics (2)

撥打地區二月份通數二月份秒三月通數三月秒數

市話總計 184 16214 197 11344

行動電話 394 25325 261 16787

PSTN 電話總計 578 41539 458 28131


Project Goal -- Year 2004 New ENUM-enabled Services

– Technology development

– Service scenario and architecture

Service Deployment and Management Issues– Use behavior

– User client deployment

– Subscribers and services management

Interworking Among Different Service Providers– IP/PSTN/Cellular inter-working

– ENUM capable equipments and systems (IPv4 & IPv6)

Investigate Basic Possible Business Model– ENUM impact on regulation: VoIP, IP multimedia

– Business model

IP Network

ENUM

ENUM Server (TWNIC)

ENUM Proxy (TANet)

Project OfficeCCLTWNICNCTU/NTU/NTHU

PSTN Gateway

PBX

IP-PBX

SIP Phone

Legacy PhoneE1 ISDN

SIP UA

SIP Phone

SIP UA

北、中、南、東區網HiNet

SIP Proxy

Softswitch

C5 Switch(Sparq, EBT)

SS7 / E1

Voice Mail Server

MMS Relay Server

Email Enabled System

Public Switched Telephone Network

GPRS Core Network

Deploy ProxyDeploy Proxy

SIP UA

Configuration A – IP-PBX Users

Configuration B – Proxy Users

Configuration C – Standalone Users

Core Service Platform

FY93 Deployment Plan


New ENUM-enabled Services

Native IPv6 Support for ENUM-enabled Services– SIP Softphone / Proxy– MMS/IM

SIP Extensions– Presence & Instant Messaging (SIMPLE)

Multimedia Messaging(MMS) & Instant Messaging(IM)

– MMS (Cellular) Instant Messaging (IP) ENUM-enabled Email


ENUM-enabled IP Multimedia Messaging

GGSN

IP NetworkIP Network

ENUM Server

MMS Server

Gateway MMSC

To: 0944-012345Sending photo …

Query:5.4.3.2.1.0.4.4.9.6.8.8.e164.apra

SMS/Registry Server

SGSN

Response:mms:0944012345@domain

InternetInternet

IM & MMSServer

IM & MMSClient

0944-012345Photo received.


ENUM-enabled Instant Messaging

SIP SoftphoneSIP Softphone

To:0944015616To:0944015616Send Message :Send Message :Hello! Dear Lao-Chou.Hello! Dear Lao-Chou.

ENUM-enabled SIP Proxy ServerENUM-enabled SIP Proxy Server

To:0944015616 To:0944015616 sip:[email protected]:[email protected]

ENUM ServerENUM Server

sip:[email protected]:[email protected] Message:Show Message:Hello! Dear Lao-Chou.Hello! Dear Lao-Chou.

SIMPLE ServerSIMPLE Server


ENUM-enabled Email Service

ENUM-enabled Email ClientENUM-enabled Email Client

To:0944015616 To:0944015616 SMTP:[email protected] SMTP:[email protected]

LegacyLegacy Email ClientEmail Client

To:0944015616To:0944015616

SMTP ServerSMTP Server

ENUM-enabled SMTP ServerENUM-enabled SMTP Server

To:0944015616 To:0944015616 SMTP:[email protected] SMTP:[email protected]

ENUM ServerENUM Server [email protected]@itri.org.tw

Thank You

台灣 sip/enum trial 現況報告 vincent hsu computer & communications research laboratories...

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