I am looking up, whether there is technically a way to provide a SMS service where anytime someone sends/receives a text message, it's free for them, and the cost is on me. Integration with twilio is a must.
E.g. if a customer's text messaging plan is only 500 txt msgs a month, and they txt my service, they still have 500 txt msgs a month on their plan.
I was kinda hoping toll free numbers worked like that, but I guess not? https://www.twilio.com/help/faq/sms/do-mobile-users-get-charged-when-they-send-messages-to-twilio-us-toll-free-numbers