4 docs tagged with "SMS"

Customer.io is a messaging automation platform. It has no built-in SMS

Example of request to send RCS message with text, image, button and resend the message by SMS in case of failure to deliver.

SMS is sent synchronously via /api/json.php (immediate gateway response with msg_id per message).

Example of request to send Viber message with text, image, button and resend the message by SMS in case of failure to deliver.