code: def send_voice_confirmation!
        return false if _TC_voice_blocked
        return true  if voice_confirmed?
        return false if _TC_phone_number.blank?
  
        format_phone_number
        confirmation_code = TwilioContactable.confirmation_code(self, :voice)
  
        response = TwilioContactable::Gateway.initiate_voice_call(self, _TC_formatted_phone_number)
  
        if response.success?
          update_twilio_contactable_voice_confirmation confirmation_code
        end
  
        response
      end
docs: Begins a phone call to the user where they'll need to type
   their confirmation code