Simphone is a secure and private open source Instant Messenger.
256-bit end-to-end encryption for voice audio calls, file transfer and chat
completely decentralized: no need to register anywhere
zero-configuration, portable, fast, small and reliable
can optionally work together with TOR to anonymize your IP address
No third party can look into your communication or block your access.
Operating System: MacOSX, Linux, Windows To use Simphone, you need:
* A computer running Microsoft Windows (version 7 or later or XP), Mac OS (version 10.6 or later), GNU/Linux, FreeBSD or another unix-like operating system;
* A working audio device (loudspeakers and microphone, preferably a good non-wireless headset);
* An internet connection (at least 128 kilobits/sec) that does not specifically restrict "peer to peer" connectivity.