
ngrok (A free ngrok account is sufficient for this tutorial). A code editor or IDE (Recommended: Visual Studio Code with the C# plugin, Visual Studio, or JetBrains Rider). NET 7.0 SDK (newer and older versions may work too) You'll need the following things in this tutorial: In this tutorial, you will learn how to implement an Interactive Voice Response (IVR) app using ASP.NET Core Web API project to record and serve your voicemails and how to manage them (play/save/delete) by calling your Twilio phone number. When you have programmatic access to your calls using Twilio, you can implement your voicemail service and customize it to you or your business's needs.
Most mobile networks provide a voicemail service letting people who call you leave a message when you can't answer, and letting you listen to those messages by calling your voicemail number.