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HOV-Lane Multiplication
We have all the necessary pieces now, so let’s assemble them into a complete Voice XML application that does some mobile multiplication while you’re doing 70 in the HOV-lane (see Listing 1).
Listing 1 Voice XML mobile multiplier
<?xml version="1.0" encoding="UTF-8"?>
<vxml version="2.0" xmlns="http://www.w3.org/2001/vxml"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.w3.org/2001/vxml
http://www.w3.org/TR/Voice XML20/vxml.xsd">
<script> <![CDATA[
function multiply(v1, v2) {
return v1 * v2;
}
]]> </script>
<form id="multiply">
<field name="v1" type="digits">
<prompt>what’s number one</prompt>
</field>
<field name="v2" type="digits">
<prompt>what’s number two?</prompt>
</field>
<filled>
<prompt>
The product of <value expr="v1"/> and
<value expr="v2"/> is <value expr="multiply(v1,v2)"/>.
</prompt>
</filled>
</form>
</vxml>