FRONT PAGE JCAD.FI Extranet Quanttos Oy Extranet service Welcome to the service! As a maintenance customer of Quanttos Oy, you can download JCAD software updates and other supplementary material here, watch instructional videos and give us feedback. Use of the service requires registration. You can create IDs from the link below. Once the registration has been confirmed by the administrator, you can use the service. If you have already registered, log in with your credentials below. Username: Password: REGISTER AS A USER RECOVER A FORGOTTEN PASSWORD