(Click to enlarge) VXI* is the VoiceXML browser for Asterisk and its Xtras* extensions allow to build advanced IVR / IVVR platforms to run standard voice and video telephony applications. This diagram shows each parts of a complete, flexible and evolutive business solution. Software Components: VXI*, VoiceXML browser for Asterisk Xtras*, Software extensions for VXI* Asterisk, the open source telephony system Speech engines: SIV, Speaker Indentification & Verification (third party) TTV, Text-to-Video (internal) TTS, Text-to-Speech (third party) ASR, Automatic-Speech-Recognition (third party) MRCP, Media Resource Control Protocol for ASR (uniMRCP) More information: How to Start Documentation Hardware servers Installation