电信网络技术的发展趋势概述

2
Annual Revenue
$60,000
$53,223
$50,000
$40,000
$30,000
$20,000
$17,678
$10,000 $-
$392
Level 3
$2,242
$2,593
Q west
Frontier
MCI Worldcom
Annual Revenue in MUSD (1998)
Source: IDC/Link BCG analysis
For China the forecast is 1.2% in 2002; 4.5% in 2005
Tyreoaadfristio! nal
voice
has
to
be
supported
Source:
for a
OVUM
lot
Report
Segmentation of operators Based on the backbone protocol 1 ❖ Established operators looking for very open multiservice networks
1
No.7信令网
公共业务平台
智能网
话音平台
电子邮件/传真
多媒体信息服务台
存储转发/EDI 语音信息台
同步网
业务网
电信管理网
支撑网
PSTN N-ISDN DDN
移动网 X.25 FRN B-ISDN 公用无线数据网 IP网
传送网
2020/5/12
图1 我国电电信网信络技网术的的发构展 成RITT 赵慧玲
•Conclusion
–There is still a lot of growth in traditional voice –The revenues largely come from the voice traffic
2020/5/12
电信网络技术的发展 RITT 赵慧玲
7
Expected growth of Voice-over-IP
AT&T revenue mix
❖ AT&T revenue mix was the following in 1998:
– Business services: 23,611 Million USD (or 44% of the revenue)
– Consumer services: 22,885 Million USD (43%) – Wireless services: 5,406 Million USD (10%) – Other services: 1,321 Million USD (2%)
电信传输研究所
为信息产业部研究发展策略，技术体制,规
范和标准，测试和任证。为电信运营公司
提供技术支持：进行设备选型和技术咨询
。例如：IN，SS7，ISDN，同步网，编号
，SDH，WDM，接入网，帧中继，多媒
体，ATM，IP，IP电话，GSM，CDMA
，高速讯呼和IMT－2000。
2020/5/12
电信网络技术的发展 RITT 赵慧玲
❖ AT&T is just starting to introduce Broadband & Internet Services in their reporting. These accounted for
Traffic volume growth of voice and data The China figures, as proposed by ITU
AT&T
$8,000
$6,000
$4,000
$2,000
$$(2,000)
$(128)
$(4,000)
Level 3
Annual Income
$(844)
$317
$(2,669)
$7,487
Q west
Frontier
MCI Worldcom
AT&T
Annual Income in MUSD (1998)
Fanodr FdRata: use of ATM backbone to transport IP
For voice: optimization of circuit networks (ATM backbone, voice over SDH, trunking of VoATM and VoIP in the existing network)
•Voice:
–Main telephones in service:
•Data:
–Number of Internet hosts: +820%
–Number of PCs:
91-92
+36%
-
92-93
+51%
+37%
93-94
+57%
+55%
94-95 95-96
+49% +35%
+277% +44% +42%
11999977
11999988
11999999
22000000
22000011
VVooIPIP
w orld-w ide figure s w orld-w ide figure s
Traditional voice Traditional voice
V oIP V oIP
22000022
%%ofotfottoatlalvoviociec(e (mimniuntuetsesofofusues)e)
Note: Level 3 had high Extraordinary Revenues in 1998 that more than compensated the Loss on
Ordinary Operations shown in this chart
MCI Worldcom Revenue mix
• By 2002, VoIP is expected to be 10.8% of total voice
trafficຫໍສະໝຸດ Baidu
(national+ international) (Internet + IP managed
networks)
110000 9900 8800 7700 6600 5500 4400 3300 2200 1100 00
2
Full support of existing services and introduction of
new services
❖ New telecom operators continuing ATM
3
deployment, carrying IP, Voice and Frame