Use zapier for integration with twilio and acuity. When zapier pulls numbers from acuity, twilio can't send because there is not a 1 in front of the number. Just need the number formatted in twilio to successfully send via the zapier zap. Works fine if user makes appointment on site and includes the 1 in front of number.
Numbers are us based. Zap works fine, just needs to be changed for proper formatting.
Budget is 20-30$