Google talk is no longer available to download on OldApps
旧版本 Google Talk
Google Talk (GTalk) is a Windows and web-based application for voice over internet protocol (VOIP) and instant messaging, offered by Google Inc. The first beta version of the program was released on August 24, 2005.
Instant messaging between the Google Talk servers and its clients uses an open protocol, XMPP, allowing users of other XMPP clients to communicate with Google Talk users. VoIP in Google Talk is based around the Jingle protocol. The technology used within the Google server network however is not publicly known.
更新 : Google Talk 更新
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Instant messaging Chat with all of your Google Talk and Gmail contacts in real time.