Developer's DescriptionBy ATGsecure SystemsTo use alphaCall you have to purchase a license from ATGsecure Systems GmbH.* To use alphaCall you have to purchase a license from ATGsecure Systems GmbH. *With its security mechanisms alphaCall offers you protection against eavesdropping at the highest level during telephone conversations and conferences.alphaCall Features ... - Transport encryption - End-to-End encryption - Authenticity check - Telephone calls and conferences - Outstanding voice quality - Worldwide accessibilityThe hybrid Voice/Data encryption, where fast resource-efficient encryption algorithm are applied, and the used authentication mechanism prevent the spying on the transmitted data effectively and provides concurrently protection against a so-called "man-in-the-middle" attack.With alphaCall your phone calls are tap-proof with global accessibility!