IHU is a Voice over IP (VoIP) application that creates an audio stream between two computers easily and with the minimal network traffic. It works without an intervening server, can use either UDP or TCP for transport, can encrypt the data stream, and can work without a GUI. It uses the Speex codec to help reduce bandwidth consumption. It supports ALSA and JACK for audio service. License: GNU General Public License (GPL) Changes: Save and Close buttons were added in the Log Viewer. A security fix was made to prevent a crash caused by malformed packets.

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