E-Justice: A Criminal Record Tracking System This a project made using Windows Forms for frontend and SQL Server 2005 for backend. It has the following features: Officer Module: Add/Edit/Search new Complainant record. Add/Edit/Search ne

语音通话已经是IM的基本功能了，qq，MSN甚至连刚出来的百度HI都自带语音聊天的功能，大家可能觉得很炫，其实大家都是用的windows平台上的API，懂了原理之后自己也可以做，再说了微软也提供了DirectSound的托管互操作程序集，使.net开发人员也很容易的介入到这个领域，甚至你还可以写一个能跑在window mobile上的语音电话，现在好多手机都支持wifi，这样一个简单的wifi电话就由你的手里诞生了。本帖来和大家一起看看如何来做网络电话。-After the voice call

this is free echo cancellation i found this on web i I dont own this. I have not tested this as im looking for some cross-platfrom lib.