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VoiceXML Adventure Game

  • December 1, 2002
  • By Jonathan Eisenzopf
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In most VoiceXML applications, you'll want to provide some help facility. Most people expect to get some kind of help when they press 0 on their phone, whether it be a live operator or automated assistance. In the example below, we've added a DTMF and voice grammar item that calls the help element in the document below.

Example 4.

<?xml version="1.0"?>
<vxml version="1.0">
<field name="answer">
<grammar> <![CDATA[
[dtmf-1 one first] {<option "door1">}
[dtmf-2 two second] {<option "door2">}
[dtmf-3 three third] {<option "door3">}
[(touch the monkey)] {<option "monkey">}
[dtmf-0 huh help what doh] {<option "help">}
<audio>You are in a small room with three doors.</audio>
<audio>Which one do you want to open?</audio>
<nomatch count="1">
<audio>Wrong door.</audio>
<audio>To open the first door, press or say 1.</audio>
<audio>To open the second door, press or say 2.</audio>
<audio>To open the third door,
press or say 3.</audio>
<nomatch count="2">
<audio>You fool! That is not a choice I am giving you.</audio>
<pause>300</pause> <audio>Press or say 1, 2, or 3.</audio>
<nomatch count="3">
<audio>Pretend you have a brain and press 1, 2, or 3.</audio>
<noinput count="1">
<audio>What are you waiting for?</audio>
<audio>Press or say 1, 2, or 3.</audio>
<noinput count="2">
<audio>If you do not press 1, 2, or 3,
I am going to kill the monkey!</audio>
<noinput count="3">
<audio>Ok. That's it. The monkey is dead and it's your fault because you did not choose 1, 2, or 3.</audio>
<noinput count="4">
<audio>1, 2, or 3.</audio>
<audio>Why are you asking for help?</audio>
<audio>Go away.</audio>
<result name="door1">
<audio>You see a large hungry monkey.</audio>
<result name="door2">
<audio>You see another room with three doors, a man, and his monkey.</audio>
<result name="door3">
<audio>You see a man scratching his monkey.</audio>
<result name="monkey">
<audio>No! Do not touch the monkey!</audio>

If you hadn't noticed, I also added multiple elements for the nomatch and noinput handlers.

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