curl -X POST \ https://verify.twilio.com/v2/Services/VAxxxxxxxxxxxxxxxxx/Verifications \ --data-urlencode "To=+19876543210" \ --data-urlencode "Channel=sms"
curl -X POST \ https://verify.twilio.com/v2/Services/VAxxxxxxxxxxxxxxxxx/Verifications \ --data-urlencode "To=+19876543210" \ --data-urlencode "Channel=sms"