Sample VoiceXML page setting SIP headers in a VoiceXML application

The following VoiceXML page sets various SIP headers on a bridged transfer.

<?xml version="1.0" ?> 
<vxml version="2.0" xmlns="http://www.w3.org/2001/vxml" xml:lang="en-us" > 
<form id="form0"> 
  <property name="AVAYA_SIPHEADER.session.connection.protocol.sip.from.displayname"
   value="kong, king"/> 
  <property name="AVAYA_SIPHEADER.session.connection.protocol.sip.to.displayname" 
  value="godzilla"/> 
  <property name="AVAYA_SIPHEADER.session.connection.protocol.sip.passertedid.displayname" 
  value="authority"/> 
  <property name="AVAYA_SIPHEADER.session.connection.protocol.sip.passertedid.uri" 
  value="sip:1234@123.321.123.321"/> 
  <property name="AVAYA_SIPHEADER.session.connection.protocol.sip.unknownhdr[0].name" 
  value="Random"/>  
  <property name="AVAYA_SIPHEADER.session.connection.protocol.sip.unknownhdr[0].value" 
  value="This is an unknown header"/> 
  <transfer name="t1" type="bridge" dest="tel:1234"/> 
</form> 
</vxml>