WARNING: This application only works for establishments enabled on the Click to Call Leucotron service. To find out more about our solution, contact us at www.leucotron.com.br Click to Call is a voice service that allows free calls between customers, companies and businesses of any segment. - HOW TO USE: Scan the QR Code or enter the activation code to access the establishment's service screen. - USER MOBILITY: This technology allows you to call from anywhere that has an Internet connection (