IMS允许运营商对多媒体会话进行适当收费：如果用户通过3G移动网络使用了视频会议，则通常会产生包含音频和视频的大量数据传输。
IMS allows operators to charge multimedia session appropriately: If a user USES videoconference over the 3g cellular network, there is usually a large data transfer that consists of audio and video.
极高的数据通信速度使得3G手机的增值服务前景一直被看好，如多媒体通信、游戏下载、可视电话会议等。
The supreme data transfer speed provides 3g mobile phone a bright future in service proliferation such as multimedia communication, game download and video-telephone meeting.
因为组播能够有效地节约网络带宽、降低网络负载，所以在实时数据传送、多媒体会议、数据拷贝、游戏和仿真等诸多方面都有广泛的应用。
Multicast reduces network overload and saves bandwidth, so it has been found a lot applications, such as real-time data transportation, multi-media conferences, data backup, games and simulations.
系统同时支持多组的多点会议，会议人员通过IP多播网互连，实现实时的多媒体数据通信。
The system support several multi-point conferences simultaneously, and terminals are connected by IP multicast network, thus enabling the realtime multimedia data communication.
系统同时支持多组的多点会议，会议人员通过IP多播网互连，实现实时的多媒体数据通信。
The system support several multi-point conferences simultaneously, and terminals are connected by IP multicast network, thus enabling the realtime multimedia data communication.
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