Plum IVR Support

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<?php
header("Content-type: text/xml");
echo("<?xml version=\"1.0\"?>\n");
?>
<vxml version="2.0">

<form id="previousform">
  <block>
    <prompt>
      This is the previous form.
    </prompt>
    <goto next="#middleform"/>
  </block>
</form>


<form id="middleform">
  <field name="input">
    <grammar root="ROOT" type="application/srgs+xml" mode="dtmf">
      <rule id="ROOT" scope="public">
        <one-of>
            <item repeat="0-255">
              <ruleref uri="#digit"/>
            </item>
          <item> "* #" </item>
          <item> "#" </item>
        </one-of>
      </rule>

      <rule id="digit" scope="public">
        <one-of>
          <item> 0 </item>
          <item> 1 </item>
          <item> 2 </item>
          <item> 3 </item>
          <item> 4 </item>
          <item> 5 </item>
          <item> 6 </item>
          <item> 7 </item>
          <item> 8 </item>
          <item> 9 </item>
          <item> "*" </item>
          <item> "#" </item>
        </one-of>
      </rule>
    </grammar>

    <prompt>
      Please enter some digits.
    </prompt>
    <filled>
      <if cond="input == '* #'">
       <goto next="#previousform"/>
      <elseif cond="input == '#'"/>
       <goto next="#nextform"/>
      <else/>
        <prompt>
          You entered <value expr="input"/>. The field you entered did not contain a pound key.
        </prompt>
      </if>
    </filled>
  </field>
</form>

<form id="nextform">
  <block>
    <prompt>
      This is the next form.
    </prompt>
  </block>
</form>

</vxml>