Janine,
Pretty small fix to the dummy <object> element that's used to block until the prompt has played. Had to add a submit to the <object> block, otherwise the VVB exits and the session hangs.
So far this is the only thing I've come across although still very early days investigating the custom add-ons with VVB.
<catch event="error.com.cisco.callhandoff.failure">
<submit next="/CVP/Server" method="post" namelist="audium_vxmlLog" />
</catch>
<form id="audium_start_form">
<block>
<assign name="audium_vxmlLog" expr="''" />
<goto next="#sync" />
</block>
</form>
<form id="sync">
<object name="dummyobj" classid="builtin://com.cisco.callhandoff">
<param name="return" expr="true" valuetype="data" />
<param name="app-uri" expr="'builtin://dummyobj'" valuetype="data" />
<filled>
<submit next="/CVP/Server" method="post" namelist="dummyobj audium_vxmlLog" />
</filled>
</object>
</form>
