To register the VIP Access App or a physical token for generating secure codes in internet banking, you must first be registered for Secure SMS. After that, you can proceed to register a security token. The VIP Access App can be downloaded from the App Store (iOS) or Google Play (Android).
Once you've downloaded the app, you can register your token by going to Services > Register token in internet banking.
After registration, your app/token will become your primary method for generating secure codes, until you choose to deregister the service.