TeamSpeak (TS) is a proprietary voice-over-Internet Protocol (VoIP) application for audio communication between users on a chat channel, much like a telephone conference call. Users typically use headphones with a microphone. The client software connects to a TeamSpeak server of the user's choice, from which the user may join chat channels. The target audience for TeamSpeak is gamers, who can use the software to communicate with other players on the same team of a multiplayer video game. Communicating by voice gives a competitive advantage by enabling players to keep their hands on the controls. Server The TeamSpeak server runs as a dedicated server on Linux, macOS, Microsoft Windows and FreeBSD and uses a client based user interface or a command-line interface to control server administration and configuration. TeamSpeak clients are available for Linux, macOS, Windows, Android, and iOS — both 32-bit and 64-bit architecture. The TeamSpeak 3 server can be used at no cost for up to 32 slots (simultaneous users). For non-commercial use, non-profit licenses were available, until September 2018, that allowed to use the server with up to 512 slots. With it, server admins can choose to split up the slots into multiple virtual server instances (up to 2). Beginning from September 2018, the non-profit license was discontinued for the new license system. It splits the licenses into 3 Categories: The commercial license is for "Companies/Businesses, who look for an internal voice communication solution". TeamSpeak Client On Monday 14th October 2019, TeamSpeak announced a fully rebuilt version of their client software. Originally dubbed TeamSpeak 5 (with the name TeamSpeak 4 rumoured to have been avoided due to Tetraphobia), their new client has been released without a version number, and is just called "TeamSpeak". The new client introduces a number of brand new additions to their services, including a modern global chat feature, a fully responsive user interface, free voice servers and many upgraded audio functions. TeamSpeak 3 TeamSpeak 3 has been in development since 2004. It was a complete rewrite of TS2 with many new features, but has had infrequent updates on the development blog, and was first estimated to be released in mid-2006. The first public release of the TeamSpeak 3 SDK was on June 5, 2008, with the integrated solution in the MMO game Vendetta Online. Open beta of TeamSpeak 3 was released on December 9, 2009. Open beta was closed on August 10, 2011 and