VAX access-control solution allows users to present smartphones, instead of cards or fobs, to specialized Bluetooth-enabled VAX door readers. Upon installation of a custom smartphone “wallet” app and a simple authentication process that links that app to the specific phone, users enter their personal VAX credentials into the wallet. Multiple credentials can be accommodated. No additional activation steps, such as entry of personal information or Bluetooth linking, are required. To unlock doors using the mobile credentials, users unlock their phone, access the credential within the wallet app and push the “unlock” button.