Twilio is one of the popular and prominent cloud communications providers, providing a rich API that allows developers to effortlessly send and receive SMS texts, among other communication features. Using Twilio is quite easy as well as integrating it into the project. If you are new to Twilio, you can read my previous article, How To Integrate Twilio In C# .NET MVC Project To Send SMS? to integrate Twilio into your project.
In this article, we will see how to resolve the Twilio Exception: Permission to send an SMS has not been enabled for the region indicated by the 'To' number.