IP Telephony

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Broadband IP Services Business Division 　

Copyright 2003 - NTT Communications Corporation

Dec. 7, 2003Yukio Saito, Senior Manager

Broadband IP Services DivisionNTT Communications Corporation

[email protected]

Trend of the IP Telephony in Japan

The 2nd Asia Pacific Broadband Summit

NTT Communications’ strategies to the VoIP market continuously growing

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Agenda

1. Trend of the VoIP market in Japan

2. NTT Communications’ strategies and future

evolution・ IP telephony services of NTT Communications

・ Future evolution for the VoIP services and our activities toward providing total office solutions

・ IP Centrex service called “.(dot) Phone IP Centrex”

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1.Trend of the VoIP market in Japan

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Class A（ Equivalent to a fixed telephone)

Class B(Equivalent to a mobile telephone) Class C

End-to-end delay

Loss probability (Connection quality)

＜ 100ms

≦ 0.15

＜ 150ms

≦ 0.15

＜ 400ms

≦ 0.15

Rating factor(G.107) ＞ 80 ＞ 70 ＞ 50

(Note) (Note)

＊ The Rating factor and the delay in the table shall be satisfied at a probability of 95%.(Note) it means that only its communications quality is “equivalent to a fixed telephone” or “equivalent to a mobile telephone”, but

any other functions are not necessarily equivalent to a fixed telephone or a mobile telephone.

■ 　 Quality standards for providing the IP telephony service

・ The 050 numbers are assigned to a carrier in case that its IP telephony service is satisfied with the quality level of Class C or higher in the following table.

Telephone numbers for IP telephony services

050 －　 CDEF 　－　 GHJK

The CDEF part is assigned by Ministry of Public Management, Home Affairs, Posts and Telecommunications(MPHPT) to each carrier. Ex. NTT Communications : from 3300 to 3450

The GHJK part is assigned to subscribers by the carrier having the CDEF number.

■ 　 050 number

・ As of Nov. 2003, about 10 million numbers are assigned to 24 carriers

(11 Digits)

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Influences of the IP telephony service in the market

■ 　 Corporate customer

・ Reduction of costs for internal calls within a company and external calls.

・ Integration of voice communications into the existing in-house data Network (V/D integration).

■ 　 ISP/CATV

・ ISP provides the IP telephony service together with its broadband access service such as an ADSL.・ Major CATV operates its own CA and obtain the 050 numbers to provide the IP telephony service.

■ 　 Contact Center/Call Center・ Improvement of the customers’ satisfaction by integrating the

customer contacts by using telephones, webs and e-mails.・ Reduction of labor costs of operators by using tele-workers and second carriers at home having special skill or working time.

・ Expansion of communications and businesses through V/D integration.

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8%5%

28%

59%

13%

5%

46%

36%

0%

10%

20%

30%

40%

50%

60%

70%

20022003

Currentlyusing.

Will use itwithin 1 year.

Currently studyingor evaluating on use of it.

Will not use itin future.

Corporate User’s trend toward VoIP

※2002: n=218, 2003: n=241

　　 Source: IDC Japan, 2003/Ric Telecom’s monthly magazine “Computer Telephony” in June 2003

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1.6%

16.3%

32.5%

68.3%

68.3%

0.0% 20.0% 40.0% 60.0% 80.0%

Reduction of costs for external calls

Internal call charges or charges of calls between the subscribers are free

Efficient use of the network

To provide service enhancement in future

Others

※Multiple answers N = 123

Factors promoting VoIP deployment in companies

　　 Source: IDC Japan, 2003/Ric Telecom’s monthly magazine “Computer Telephony” in June 2003

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Forecast of the number of companies using VoIP

0

2,000

4,000

6,000

8,000

10,000

12,000

14,000

16,000

2002 2003 2004 2005

To use IP Centrex service

To use VoIP-GW

To use TA type

(Using the existing PBXs)

(Using the existing telephone)

Source: Investigated by NTT Communications

(Using IP telephone)

IP Network

IP telephone

existing telephone

TA

IP NetworkVoIPGW PBX

PBXIP Centrex

existing PBX and telephone

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NTT CommunicationsNTT Communications Plala Networks,NTT-ME

Plala Networks,NTT-MEFusion Communications

Fusion CommunicationsKDDI, Japan Telecom,Powered Com

KDDI, Japan Telecom,Powered ComSoft Bank BB

Soft Bank BB

Current situations of the IP telephony service for consumers

Plala Networks,NTT-ME

Plala Networks,NTT-ME

Fusion Communicatio

ns

Fusion Communicatio

ns

KDDI, Japan

Telecom, Powered

Com

KDDI, Japan

Telecom, Powered

Com

NTTCommunications

NTTCommunications

IP telephony service Carriers (wholesale)

ADSL/FTTH operators

ISP Providers

●BIGLOBE

●NTT Communications (OCN)●@nifty

●So-net

●Panasonic hi-hoYahoo!BB

Premises of the IP telephone user





・・・

・・・

・・・

・・・

・・・

53 companies (as of Oct. 16)

Acca Networks,

NTT East/West etc.

●BIGLOBE●DION●POINT●@nifty

5 companies (as of Jul. 31)

●Fusion Communications●BIGLOBE

●Gunma Internet

About 20 companies (as of Jul. 1)

●BIGLOBE●WAKWAK

●ASAHI Net

●Plala

About 45 companies (as of Jul. 1)

etc.

etc.

etc. etc.

Acca Networks, e Access, TEPCO, Local

carriers of electric power companies etc.

Acca Networks, e Access, NTT East/West etc.

NTT East/West

Source: Extracted from Nikkei Communication No. 397 Aug. 25, 2003

ADSL ： asymmetric digital subscriber lineFTTH ： fiber to the home

2.8 M subscribers 5 M subscribers 2.5 M subscribers Not announced 0.2 M subscribers

No. of broadband users (Asahi Shimbun Sep. 17, 2003)

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1999年実績

Webコラボレーション

0.1%

テキストチャット

0.1%

eメール6.0%

その他6.8%

電話87.0%

Use ratio of Contact media

Source: Datamonitor, Contact Babel/CRM Perfect Vision

　　　 issued by Ric Telecom in 2002

2003年末予測

電話61.3%

VoIP3.2% その他

2.5%Webコラボレーション

2.4%

テキストチャット

3.3%

eメール27.3%

Use condition at OCN Contact Center（ Inquiries to the customers support desk)

データは 2003 年 4 月実績 (web ﾃﾞｰﾀは５月実績）

電話64%

Ｗｅｂアクセス24%

ｅメール9%

ＦＡＸ3%

Web collaboration

Others

E-mail

OthersText chat

Web collaboration

E-mail

Result in 1999

Forecast at the end of 　2003

Telephone

Telephone

Text chat

ＶｏＩＰ

Webaccess

Data is a result of April 2003

(Web data is a result of May)

E-mail ＦＡＸ

Telephone

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2. NTT Communications’ strategies and future

evolution・ IP telephony services of NTT Communications

・ Future evolution for the VoIP services and our activities toward providing total office solutions

・ IP Centrex service called “.(dot) Phone IP Centrex”

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CompanyHome

Data communications services

IP telephony services

IP telephony service for ISPs/CATVs

2003.3.1 ～

2003.3.1 ～

OCN ． Phone Office

2003.7.17 ～2003.4.10 ～ (eVLAN, B-OCN)2003.9.30 ～ (Arcstar IP-VPN)

（ Reference ） http://www.ntt.com/index-e.html

IP telephony services of NTT Communications

(wholesale)

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■ 　 ISP

・ Call control and voice packets are transferred over the CATV network.

・ IAD (ADSL Modem with VoIP functions) is provided to each ADSL user. In case of FTTH, TA(Adapter with VoIP functions) is provided.

・ SIP and RTP.

・ Call control and voice packets are transferred over the Internet.

・ MGCP or SIP and RTP.

・ In case of Large CATV, it has the CA and the 050 numbers.

・ ISP uses the CA and the 050 numbers provided by IP telephony service carriers.

SIP ： Session Initiation ProtocolRTP:Real-time Transport ProtocolMGCP:Media Gateway Control Protocol

Features of the IP telephony service provided by ISP/CATV

■ 　 CATV

・ TA is provided to each CATV user.

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■ 　 Costs can be reduced by integrating voice communications into an in-house data network through the VoIP technology. (V/D integration)・ Facilities which have already introduced for constructing a data network such as routers etc. can be also used for voice communications.

・ Since the existing LAN circuits for the in-house data network can be used, installation works of telephone lines etc. are not required.

・ Costs can be reduced by utilizing the bandwidth capacity of an in-house data network more efficiently.

NTT Com’s IP Centrex service = “.(dot) Phone IP Centrex”

Advantage of the IP Centrex Service

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VoIP networkfor ISPs/CATVs

e-VLAN ／ＩＰ - ＶＰＮ

OCN Access（ FLETS/ ＡＣＣＡ）

Telephone network

Extension numbers,　 050 numbers

Company-A

Company-B

.Phone IP Centrex

ＯＣＮ、ＩＳＰ、ＣＡＴＶFW

VoIP network for corporate users

NTT ComVoIP infrastructure network

International

Number portability from PSTN (Planed)

Standard PBX

functions

VPN/InternalInterworking

FW/NAT

Mobile

From Oct/23

From Nov/5

Outlines of .Phone IP Centrex service

Domestic: \10.8/3 min

From IP to Mobile: \19/minFrom Mobile to IP: \70 - \84/3 min (NTT DoCoMo) 1

PHS (Planed)

VoIP networks other carrier

interworking (Planed)

Domestic: \8/3 min

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ＲＬＡＮ

IP telephone

ＴＡ VoIP-GW■

IP telephoneExisting telephone

.Phone IP Centrex service

Existing PBX

① ② ③ ④

IP-PBX

Ｒ

・ ODT・ PRI・ TTC2M etc.

■ 　 Signaling protocols

■ 　 Types of accommodation to the service

・ SIP

・ MGCP

Outlines of .Phone IP Centrex service

■ 　 Standard menu of PBX Functions

Call Waiting / Call Forwarding / Call Identification / Multi-Line Hunt GroupsCall Transfer / Call Hold / Call Restriction

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■ 　 IP Contact Center

■ 　 Mobile IP Centrex

■ 　 Unified Message

■　 Desk Free (Mobile office)

■　 Wireless LAN security enhancement

■　 Groupware interworking with VoIP

■　 Mobile terminal with more advanced functions

■　 Collaboration among PC, PDA, SoftPhone and mobile terminals

Future evolution activities

■　 Multiple customer contacts such as telephone and e-mail, and integration of the customer DB

・ Enhancement of communications

・ Reduction of communications costs・ Voice and data integration

・ Innovation of working style and flow

Future evolution for the VoIP services and our activities

To create new values and value chains!

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Toward Mobile IP Centrex

Mobile telephone network

VoIP infrastructure network

eVLAN/IP-VPN

Existing telephone terminal

Data communicatio

ns

Fixed telephone network

.Phone 　 IP Centrex

International telephone network

CAMG

ADSL/FTTH ADSL/FTTH

・ Internal calls are free of charge・ PBX and wiring are not required・ Terminals can also be used as an ordinary mobile telephone

Existing PBXIn-house LAN

Wireless IP Telephone

Mobile IP Centrex

VoIP value-added services

Data communications

GW

Current IP Centrex Mobile IP Centrex

Wireless LAN

IP telephon

e

Evolution

→ to cordless office/Desk Free

Unified messageWeb conference/TV conference

IP Contact center etc.

Hot spot Wireless

LAN

Seamless connection environment

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Unified Message 　 [ Example of Notes and .Phone IP Centrex ]

.Phone IP Centrex

In-house voice/data integration networkHead office Branch office Sales office SOHO

Tel. No.

PBX functions

Notese-mail address

Unified message function

LotusNotes

Customer Data Center(IBM Data Center)

PSTN

Telephone (internal/external)

Unified message(Telephone → Voice message)

Unified message(Voice message → e-mail)

Unified message system

e-VLAN / IP-VPNOCN

Interworking between “.Phone IP Centrex” and “Lotus Notes”

■ 　 Example of the unified message solution by alliance between NTT Com and IBM Japan

No presence/No response

×

Transfer

http://www.ntt.com/release_e/news03/0007/0728.html

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.Phone IP Centrex(VoIP network)

D

【 NTT Com Data Center 】.Phone IP Contact center

・ IVR (Interactive Voice Response)Automatic voice answering. Call assignment with DTMF inputs.・ ACD (Automatic Call Distribution)Function for distributing receiving calls automatically. A call will be connected to the optimum operator according to the operator’s skills and/or the callers data.

Basic services

・ Simple DB interworkingDB reference with a call flow. To display DB contents on the agent terminal’s display.

・ Provision of Original Call FlowIt is possible to define unique call flows for the respective customers.

【 Company-ACall flow

/IVR/ACD 】MGFreFree e DialDial

Mediagateway

0120-X ～ X / 03-X ～ X

Contact Center of Company-A

・ Real time report displayIt is possible to browse agents’ conditions and call conditions on a real time basis.

・ Management statistic data outputIt is possible to capture call records of agents and call processing records for a certain period.

xDSL ／FTTH

【 Inquiry 】

・ Call monitoring, Call interruptionCall monitoring by supervisors.

・ Call transfer/Hold between agents, External call transferTo transfer calls to supervisors. Call transfer to the exiting call center through PSTN.

IP Contact Center [ .Phone IP Contact center service ]

Agent working at home

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Thank you for your kind attention.

Documents

IP Telephony