How to set up your C# and ASP.NET MVC development environment

“In this guide we’ll cover how to set up your ASP.NET development environment for an MVC project. Now we will add the Twilio C# SDK and show a simple example of how to use it with an MVC project. Click on Browse Make sure that include prerelease is checked and Search for Twilio Select Twilio by Twilio, on the right hand pane check the box for your project choose the latest version and click Install. When you’re working on your application in your development environment, your app is only reachable by other programs on the same computer, so Twilio won’t be able to talk to it. For the final step, heads up towards the phone number section in Twilio’s console.”
https://www.twilio.com/docs/guides/how-to-set-up-your-csharp-and-asp-net-mvc-development-environment