Speak Freely for Windows

A free Internet phone program for talking to someone PC-to-PC over a network, i.e., a voice chat program. No banner ads. Features encryption hooks, answering machine, text chat, cross platform versions for Unix/Linux. Optional facility for a buddy addressing server to list who else is on-line similar to the commercial instant messaging programs. Integrates with ICQ. Good voice quality. Optional C++ source code (free) for those interested in learning about with Internet speech protocols.