IMS允许运营商对多媒体会话进行适当收费：如果用户通过3 G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.
服务质量的概念、多媒体应用对网络的需求、音频和视频的网络需求、多媒体数据实时通信时对网络的各项要求也需要了解。
The conception of quality of server, the require of the real-time communication of multimedia data for network is also need to be known.
AT M是一种高速的能够兼容语音、信号、数据、视频和多媒体图片的交换技术。
ATM is a high speed switch technology, which can comprise audio, signals, data, video and multimedia photographs.
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