The long answer: The carriers have set up a registration process called The Campaign Registry. You can read The Campaign Registry FAQs here.The two key entities for registration purposes are Brands and Campaign Service Providers (CSPs). In this model, you, a Plum Voice customer leveraging Plum’s platform to automate SMS, are considered a Brand. Plum Voice is considered a CSP.Plum Voice, is responsible for providing The Campaign Registry with accurate Brand information.