Using SMS with ARForms Add-on, you can send customizable text message as a part from notification to user as well as administrator. You can send SMS through any of the following popular SMS gateways. 35+ Popular sms gateway supported built-in. To send SMS notification to users and site admin, Create a form included a Phone Number field and select the SMS gateway from Twilio, SMSGlobal, Nexmo, Clickatell and 30 others and then configure appropriate field to send message. User will be notified immediately after filling out the form to his number.