Use the Sample Template for US Short Code Migration as a guide for creating a migration letter.
Note: This is only required for MIGRATING codes.
Watch this step-by-step tutorial to familiarize yourself with the basics of SMS and to learn how easy it is to send your first message with Sinch.
Sign up to the Sinch Dashboard and get started today or take a look at the Sinch SMS Product page to learn more about our SMS products.