IHU is a Voice over IP (VoIP) application for GNU/Linux that creates an audio stream between two computers easily and with the minimal traffic on the network.

The main features are:
* Peer-to-Peer: the communication takes place directly between the computers (UDP and TCP both supported), without need of session protocols (such as SIP or H323) or other servers in the middle.
* Good audio performance: IHU was born to give the best audio performance, low latency above all.
For this purpose IHU is compatible with ALSA and with JACK.
For the audio compression, IHU uses Speex, a codec optimized for speech (and completely free and open source).
* Crypted stream: you have also the possibility to Encrypt/Decrypt the stream using a fast hybrid cryptographic system (RSA + Blowfish).
* Command-line support: the GUI is not strictly necessary, you can run also a textual IHU from command-line (for example if you need to run the program on remote computers).