点对点通话程序。用VC编写了一个dll，通话程序的界面用VB 实现。-procedures for point-to-point call. VC prepared a dll, the procedure call interface with VB.

一个效果一流的网络视频电话源码，可以轻松实现Ｐ２Ｐ视频通话,-video call application source code written in vb, psp connection.