Use this request to opt in a phone number that is opted out, which enables you to resume sending SMS messages to the number.
You can opt in a phone number only once every 30 days.
get/#Action=OptInPhoneNumber
Query parameters
phoneNumberstring required
The phone number to opt in. Use E.164 format.
Action'OptInPhoneNumber' required
Version'2010-03-31' required
Response
Success