The World Wide Web Consortium (W3C) is standardising several new languages to enable new functions and capabilities in your IVR systems: VoiceXML 3.0 (the new version of the popular language for developing speech applications); Call Control XML (language for controlling telephone connections); EmotionML (represents emotions captured from user behaviour and emotions exhibited in artificial agents); and HTML-Speech (embedding speech into web pages). Learn about the key features of these languages and when they will be available.