Editing VoiceXML (section)

==Usage==
VoiceXML applications are commonly used in many industries and segments of commerce. These applications include order inquiry, package tracking, driving directions, emergency notification, wake-up, flight tracking, voice access to email, customer relationship management, prescription refilling, audio news magazines, voice dialing, real-estate information and national [[directory assistance]] applications. {{Citation needed|date=January 2019}}

VoiceXML has tags that instruct the [[voice browser]] to provide [[speech synthesis]], automatic [[speech recognition]], dialog management, and audio playback.  The following is an example of a VoiceXML document:

<syntaxhighlight lang="xml">
<vxml version="2.0" xmlns="http://www.w3.org/2001/vxml">
  <form>
    <block>
      <prompt>
        Hello world!
      </prompt>
    </block>
  </form>
</vxml>
</syntaxhighlight>

When interpreted by a VoiceXML interpreter this will output "Hello world" with synthesized speech.

Typically, [[HTTP]] is used as the transport protocol for fetching VoiceXML pages.  Some applications may use static VoiceXML pages, while others rely on dynamic VoiceXML page generation using an [[application server]] like [[Jakarta Tomcat|Tomcat]], [[Weblogic]], [[Internet Information Services|IIS]], or [[WebSphere]].

Historically, VoiceXML platform vendors have implemented the standard in different ways, and added proprietary features.  But the VoiceXML 2.0 standard, adopted as a W3C Recommendation on 16 March 2004, clarified most areas of difference. The VoiceXML Forum, an industry group promoting the use of the standard, provides a [[conformance testing]] process that certifies vendors' implementations as conformant.