Free Voice over IP (VoIP) Clients
Free voice over IP (VoIP) clients are abundant on the Internet.
If you're looking for free voice and video communication, this is the place!
AdCalls changes the typical voice over IP business plan by providing advertising-sponsored telephone calls to anywhere in the continental United States and Canada with no additional charge.Platforms: Windows 98/ME/NT/2000/XP
Voiceglo's GloPhone merges the capabilities of a physical telephone with the convenience of voice over IP technology.Platforms: Windows 98/ME/2000/XP
GnomeMeeting is an H.323 compatible videoconferencing, telephony, and VoIP softphone that allows you to make audio and video calls to remote users with H.323 hardware or software (such as Microsoft Netmeeting).Platforms: Windows, Linux
Google's venture into the voice over IP and instant messaging arena has been met with one of simplest and clearest voice clients available.
Platforms: Windows 2000/XP
Microsoft's NetMeeting was one of the first voice over IP clients, and it's certainly the most ubiquitous in the Windows operating system.Platforms: Windows 95/98/ME/NT/2000/XP
Skype is free VoIP software that includes voice conferencing, file transfer, PSTN integration, and other great features!Platforms: Windows 2000/XP, Mac OS X, Linux, Pocket PC
TeamSpeak is a quality, scalable application which enables people to speak with one another over the Internet. TeamSpeak consists of both client and server software.Platforms: Windows, Linux, Unix
Yahoo! Messenger is one of the most popular instant messaging systems in the world. Messenger's voice over IP capabilities provide free PC-to-PC voice calling, including a built-in voicemail service.Platforms: Windows 2000/XP, Mac OS X, Linux