Recommendation for new behavior for <subdialog>

The <subdialog> feature of VXML 2.1 is a great improvement over just <goto> call flow.  However, I have never found a benefit to having a fresh variable context when calling a form via <subdialog>.  Other users may rely on this, so I recommend an alternate behavior based on a new attribute or a new tag.  This alternate behavior would allow the form that is called via <subdialog> to execute in the same application context as the caller.

In order to get around this, I currently pass all of my variables to forms that are called by <subdialog> as javascript objects with lots of properties.  And I have to pass them with temporary names and assign them back to their real names immediately inside the form I'm calling.

<var name="sessionArgs">

<subdialog name="sub_verifyIntro" src="#s102_Verification1">
       <param name="tempSessionArgs" expr="sessionArgs"/>
       <filled>
              <!-- do something -->
       </filled>
</subdialog>

<form id="s102_Verification1">
       <var name="tempSessionArgs"/>
       <block>
              <assign name="sessionArgs" expr="tempSessionArgs"/>
       </block>
       ...
</form>



David Wright, OFS
Senior Software Engineer
Ontario Systems, LLC
765-751-7233


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