IP videophone

Finally, applying PPPoE to IP videophone realizes the embedded system communication in broadband access mode.

文中最后给出PPPoE的个典型应用实例IP可视电话，将PPPoE应用在IP可视电话中，实现了嵌入式多媒体终端的宽带接入。

Therefore, the IP Videophone will become an inevitable trend of information development as the representative communications.

所以作为代表可视电话的视频通信将成为信息社会发展的必然趋势。与此同时3G的发展将提供新的动力促进IP可视电话的发展。

IP videophone is the comprehensive application of multiple technologies, including such technologies as design of Graphic User Interface, audio capture, audio coding, video capture, video coding and their transmission on network.

IP视频电话是多种技术的综合运用。包括GUI设计、语音采集播放、语音压缩编码、视频采集，对视频进行压缩编码以及网络传输等。

Development of IP Videophone Terminal Based on DSP

基于DSP的IP可视电话终端开发

Under this background, we designed the Videophone terminal based on the DSP. The terminal has the IP videophone function and standard PSTN telephone function at the same time.

在这种背景下，我们设计了这款支持H.323协议基于DSP的IP可视电话终端。

IntroductionIn the communication systems, echo and noise will seriously affect speech communication quality, such as IP telephone, videophone and hand-free digital cell phone systems etc.

引言在通信系统中，例如IP电话、可视电话及免提数字蜂窝电话系统中，回声和噪声会严重影响通信质量。

It has also widely promising applications for speaker/ microphone communication systems, such as IP phone, videophone and hand-free digital cellular telephony system, and so on.

它在IP电话、可视电话及免提的数字蜂窝电话等扬声器/传声器通信系统中也具有广阔的应用前景。