Question : how to devevlope voice chat applications using C#.net ?

hi all,
       i hav to develope voice chat applications in C#.net. can u giv me any idea for this?

                                                     thanks in advance..

Answer : how to devevlope voice chat applications using C#.net ?

you need to refer SIP protocol and some Network progrmming, It bit difficult task in C#, Giving you one sample URL .. refer that
http://www.socketcoder.com/ArticleFile.aspx?index=2&ArticleID=59