http://www.teamspeak.com/?page=teamspeak3How is TeamSpeak 3 different from TeamSpeak 2 and why did it take so long to release?
TeamSpeak 3 is a complete re-write of the product from the ground up. Previous versions of TeamSpeak were written in Pascal, a much older programming language with many limitations. In contrast, TeamSpeak 3 is written in C++ and not only introduces a completely new SDK based architecture, but right from its initial release to the public has also introduced cross-platform support for both client and server for Windows, Linux, and Macintosh platforms. This was not an easy feat which is one of the reasons the dev team chose to take the added time to make certain that TeamSpeak 3 is everything our users and customers have come to expect in a quality VoIP product. Also keep in mind TeamSpeak 3 introduces many new features as well as tackles many previous challenges in terms of scalability, compatibility, and of course superior voice quality. For more information and background on TeamSpeak 3 please visit our YouTube podcasts.
Is TeamSpeak 2 compatible with TeamSpeak 3?
TeamSpeak 2 is in no way compatible with TeamSpeak 3. Keep in mind TeamSpeak 3 has been completely re-written in C++, introduces new features, and the protocol itself has been completely re-engineered. Therefore, you cannot connect to a TeamSpeak 3 server using a TeamSpeak 2 client, nor can you connect to a TeamSpeak 2 server using a TeamSpeak 3 client.