IP

1

IP

Frost & Sullivan 2002

2

2002

IP 2002 2007

IP

Frost & Sullivan 2001 2900 2004 3400

IP IP

Cisco 3Com IP PBX

IP

3

IP ( ), 2001

3200

( ) 8.41

38.7%

59%

18,900

1,400 4,000

1.7%

82,500

25 %

8

9

( ) 30

12

7

10

IP ( ), 2002-2007

1-2 3-4 5-7

1

2 IP

3 IP

4 IP

5

6

7 IP

8

9

10 Windows XP Web

4

IP IP

IP

(

)

IP

IP IP

IP

IP

800# VoIP

/ IP

IP PC

PC IP ACD ACD CTI IP

CTI PBX IP/ PBX

IP

IP

/

IP

IP

IP

IP

Web

IP

IP

5

PSTN IP

PSTN

IP

Frost & Sullivan 2001 2900 2004 3400

CRM

CTI IP CTI IP

IP

Cosmocom 1997 IP

QoS VoIP

2001 VoIP

VoIP

6

800

IP

IP

Cisco, Cosmocom Telephony@work

ASP

Windows XP Web

2001 Windows XP Web VoIP XP

Jon Arnold Frost &

Sullivan VoIP Sounding Board Magazine IP PC

12/1/2001 VoIP

PC XP SIP

IP

7

IP ( ), 1998-2007

( ) ( ) %

1998 4.5 9.1 ---

1999 7.7 14.6 65.0

2000 13.4 24.1 33.2

2001 18.9 32.1 38.7

2002 27.0 45.5 41.5

2003 57.1 87.8 92.9

2004 133.0 192.9 119.7

2005 271.6 58.6 85.9

2006 496.9 605.3 68.8

2007 690.7 841.4 39.0

(2001-2007): 59%

: 2001

2002 IP

IP PBX IP

IP

IP IP IP

IP IP

2003 IP IP

VoIP

IP

2005 1999 2000

8

( )

http://www.cisco.com2002

(c)2002 IOS Empowering the Internet Generation

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