I would like to share one of my new experiences related to .NET and VoIP. Recently I have found the source code of a application which was written in .Net 4.0. It is a VoIP application and
it can forward and receive calls and it has speech to text function. It means that it can record the telephone
conversation on the basis of keyword. And in addition it is possible to convert this voice record to text format.
And later you can search in the text on the basis of the given keywords. The source code can be the basis of a application which fits to your needs perfectly.
If you are interested in, You can read about this solution here: