Twilio SMS Consent strategy

In order to be compliant with SMS sending rules, we need to have a few extra measures: When you firstly add an SMS node, we need an area below the node elements that will contain a choice: "By using this node, you agree on sending SMS to the provided phone number" and an "Confirm" button. We need to save the datetime for each user. It will appear one time only. Once confirmed, it will never be shown, but stored in the database. If it's not confirmed, SMS will not be fired When updating/publishing the form, an SMS must be fired only once, to all phone numbers in the SMS nodes with a certain text: "You subscribed to form flow alerts. If this is not intended, reply with STOP" We need to send this only once per phone number used Update, if possible, send a vCard: a "welcome sms" to let them know they are signed up. I think we should also send a contact card and save us as Formflow An SMS contact card, sometimes called a vCard, is a digital "business card" sent via SMS that allows recipients to easily save your brand's contact information to their phone. It's a way to make your SMS messages more personalized and familiar, like those from friends and family.