"Chat" in internet terms refers just to TEXT chat - typing back and forth. But VOICE chat is for programs or sites that allow users to TALK back and forth, as well as or instead of typing.
Sites listed here let all visitors to the site talk to each other live (in turn) and many also have text messaging built in. To talk on any site one needs at least I.E.4, or Netscape 4.08, or AOL 4, or better, a working microphone or headset, and a very small browser "plugin" which should load automatically once when you first access the page.
The different systems used appear to be: Yahoo Chat, Excite(using LipStream), LipStream alone, Vocaltec Surf'n'Call, TelcoPoint using HearMe, plain "old" HearMe VoiceCreator, and "new" blue HearMe. (Some of these have since ceased - refer FAQ).
Application service provider for voice over IP, voice conferencing and chat for businesses, eLearning and Web communities.
Voice communication hosting. Specializes in Ventrilo, Teamspeak, Mumble, and Mohawk Voice hosting.
Free chat program featuring voice rooms, secure messaging, video conferencing, web browsing, whiteboards and games.
Open source voice communication software for Windows, Mac, and Linux in both server and client.
Full duplex voice application, use to communicate with others during multiplayer games.
Free half duplex, channel based voice chat software. Supports Windows, Mac, and Linux platforms with client and server as well as Iphone and Android with client software.
Mumble, Ventrillo, and Teamspeak server hosting for online gamers.
Free real-time voice chat software for group communications. Supports surround sound. Available for Windows, Mac and Linux platforms as server. Clients are provided for Windows and Mac.
Offers free communal voice chat to the public and subscription based private rooms. Requires plug-in.
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