External Resources
The following documents serve as extra references to fully take advantage of all the features:
W3C VoiceXML
Voice Extensible Markup Language (VoiceXML) Version 2.0:
http://www.w3.org/TR/voicexml20
W3C VoiceXML
Voice Extensible Markup Language (VoiceXML) Version 2.1:
http://www.w3.org/TR/voicexml21
W3C VoiceXML
French translation of VoiceXML Version 2.0:
http://www.yoyodesign.org/doc/w3c/voicexml20/index.html
W3C Grammars
Speech Recognition Grammar Specification Version 1.0:
http://www.w3.org/TR/speech-grammar
W3C SSML
Speech Synthesis Markup Language (SSML) Version 1.0:
http://www.w3.org/TR/speech-synthesis
W3C Tutorial
VoiceXML Tutorial, “Getting started with VoiceXML 2.0”:
http://www.w3.org/Voice/Guide/
W3C Voice Browser Working Group
“Voice Browser Working Group Activity website.
ECMAScript
Standard ECMA-262, ECMAScript Language Specification:
http://www.ecma-international.org/publications/standards/Ecma-262.htm
ZVON VoiceXML
Online VoiceXML 2.0 Reference:
http://www.zvon.org/xxl/VoiceXML2.0Reference/Output/index.html
Asterisk PBX
The Digium open source PBX official website.
The World of VoiceXML
Ken Rehor's World of VoiceXML includes news, events, reports and other useful information.
http://www.kenrehor.com/voicexml/
Voip-info.org
This is a very good resource for everything about Asterisk.
OpenVXI
OpenVXI is a portable open source library that interprets the VoiceXML dialog markup language 2.0.