On October 24, 2000, IBM made available for free downloading the U.S. English version of the IBM WebSphere Voice Server SDK, which is based on the VoiceXML Version 1.0 language specification

This document specifies VoiceXML, the Voice Extensible Markup Language. VoiceXML is designed for creating audio dialogs that feature synthesized speech, digitized audio, recognition of spoken and DTMF key input, recording of spoken input, telephony, and mixed initiative conversations.

This document introduces VoiceXML, the Voice Extensible Markup Language. VoiceXML is designed for creating audio dialogs that feature synthesized speech, digitized audio, recognition of spoken and DTMF key input, recording of spoken input, telephony, and mixedinitiative conversations.

Authentication is given, because such a system would already exist for an e-commerce site, and because although XML/XSLT would be helpful for creating device-specific login code, we are not going to examine on- the-fly transformation (inside a web server, for example) in this particular study.