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.
fonmon is a remote phone monitor for isdn4linux. It includes a server application for your ISDN-enabled computer (e.g. an ISDN gateway) and a client for your workstations (Linux and even Windows). You can easily monitor all incoming calls through your network with various clients, with features like highlighting, logging, and number/name exchange. The server won't run on a machine without an ISDN card in it.
RAT is an RTP audio conferencing and streaming application that allows users to particpate in point-to-point and multi-point audio conferences over the Internet. Developing features include multiple sampling rates, mono/stereo, loss concealment, and IPv4/IPv6 support, and both versions feature encryption and run on a range of platforms.
The Mobile Device Information project is a Java Swing application that provides desktop interface access to the WURFL (Wireless Universal Resource FiLe). The WURFL contains information about the capabilities of a huge number of wireless devices. The Mobile Device Information project allows users to search for individual devices, or devices that meet certain criteria, e.g. "Which Nokia phones are MIDP-2.0 enabled and support at least 65536 colours?"
GYach Enhanced is a feature-rich, improved version of the original Gyach. It is the first Yahoo! client for Linux with voice chat capabilities. It offers almost all of the features you would expect to find in the official Windows Yahoo! client. The program offers support for chat, conferences, buddy lists, and My Yahoo content. In addition, Gyach Enhanced offers many features not available in the official Yahoo! clients for Windows, Mac, and Linux. Webcam support is under development and planned for the future. Unlike the original Gyach, GYach Enhanced is designed for Linux only.