【摘要】 介绍了H.323多媒体通信协议,并在此基础上提出了一种基于数字电视机顶盒的IP电话硬件和软件设计。与传统的IP电话相比,该设计方案利用机顶盒控制模块,并且应用于宽带网络环境中,对话音的压缩要求不高,从而降低了硬件实现的复杂度。更多还原

【Abstract】 H.323 multi-media communication protocols are presented. The design of IP telephone′s hardware and software on STB(Set Top Box) of digital TV is put forward. Compared with the traditional IP telephone, the design making use of STB′s controlling module is used and applies to environment of wide band net. The voice data needn′t to be compressed,and complication of the hardware is reduced.更多还原