Want to use voice and video application or API in ASP.Net

Aug 26, 2015 at 5:41 AM
I am using ASP.Net 4.0, I want to use these application into my web application as voice and video chat option, to do these I have already download the source code and check the URL for testing but yet it is not working, So I want to know how can I implement the voice / video chat into my web application using these application.