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台灣 SIP/ENUM Trial現況報告
Vincent Hsu
Computer & Communications Research Laboratories (CCL)
Industrial Technology Research Institute (ITRI)
2004網際網路趨勢研討會March 31, 2004
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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
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What is ENUM?
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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.
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 ?
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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.
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
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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.
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
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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.
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
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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.
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
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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.
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
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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.
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
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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.
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.
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ENUM Trial Project
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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.
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)
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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.
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
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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.
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
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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.
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
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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.
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
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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.
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
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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.
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
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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.
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
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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.
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
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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.
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
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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.
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)
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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.
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)
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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.
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
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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.
Total Number of Calls
Month Number of Calls
200310 135
200311 629
200312 601
200401 236
200402 962
200403 579
SUM 3142
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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.
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
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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.
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
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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.
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
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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.
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
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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.
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
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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
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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.
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
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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.
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.
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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.
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
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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.
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
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Thank You