CallSec

Description: CallSec is a security-first communications platform for encrypted messaging, voice and video calls. MILITARY-GRADE ENCRYPTION End-to-end encryption, built on an audited open-source cryptographic core, ensures only you and your recipients can read messages or hear calls. Not even the server can access your content. SECURE VOICE & VIDEO CALLS Crystal-clear encrypted calls with TURN relay mode that prevents IP address leaks. Multi-device support — receive calls on all your devices simultaneously. ADVANCED DEVICE SECURITY • Root/jailbreak detection • IMSI catcher detection with cell tower database • Screenshot and screen recording prevention • Microphone spy detection during calls • Overlay attack protection PRIVACY CONTROLS • PIN, pattern, or biometric app lock • Panic PIN — triggers emergency data wipe under duress • Dead Man's Switch — auto-wipe if you don't authenticate within set days • Disappearing messages • Incognito keyboard and clipboard auto-clear • Secure notifications SELF-HOSTED & ON-PREMISES Deploy on your own infrastructure for complete data sovereignty. True on-premises deployment with federation support between organizations. MULTI-DEVICE Use CallSec on multiple devices with the same account. Device approval workflow ensures only authorized devices can access your communications. CallSec is designed for organizations and individuals who require the highest level of communication security.