Handling Telephone calls using .NET Framework

I am working on the project that when customer makes a phone call, my computer needs to answer the phone and gives the customer choices such as for Michael press 4 or for Jane press 5 and as soon as customer makes a selection program needs to ask the phone number and so on. I don't need a complete job done. I just need to have idea how this work can be implemented on .NET framework using C#.NET. For more information, please contact me. Good Luck! Danko ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Installation package that will install the software (in ready-to-run condition) on the platform(s) specified in this bid request. 3) Complete ownership and distribution copyrights to all work purchased. ## Platform Windows, C#.NET