CryptoPhone 500i by GSMK is an Android-based secure mobile phone offering 360° mobile device security for secure messaging and voice over IP communication on any network. It is the predecessor of the CP600 and features the patented first-generation GSMK Baseband Firewall. The CryptoPhone 500i utilizes the same encryption algorithms as GSMK's fixed-line and satellite-based CryptoPhones, allowing secure calls and message exchange across network borders.
