CryptoPhone 20 by GSMK is a secure desktop phone offering end-to-end voice and message encryption. It features a hardened operating system for protection against attacks and is compatible with the GSMK CryptoPhone ecosystem, including private on-premise infrastructures. CryptoPhone 20 is designed for use in governmental and corporate settings, naval vessels, and head-of-state aircraft. It provides top-level protection for confidential communication with a modern touchscreen and intuitive user interface. CryptoPhone 20 is ready for use out of the box, requiring no installation or configuration.