A callback URL can be configured for an existing SMS service plan. This is the URL to which delivery receipts and incoming messages will be sent. You can also update an existing callback URL for an existing service plan.
To configure the callback URL for a service plan:
In addition to setting the callback URL for an existing SMS service plan, you can also assign a virtual number to an SMS service plan.
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.