posted July 17, 2006 06:04 PM                          

quote:

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If the caller disconnects by hanging up (either during a call transfer or call transfer attempt), the connection to the callee (if one exists) is dropped, a connection.disconnect.hangup event will be thrown, and dialog execution will transition to a handler for the hangup event (if one exists). The form item variable, and thus shadow variables, will not be set.

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code:

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... 
<var name="callLength" expr="0"/>
... 
 
<script>
 function get_difference(x,y) {
  return x - y;
 }
</script>
... 
 
<form id="transfer">
 <!-- Instantiate new date object to indicate start of call transfer --> 
 <block>
 <var name="callStart" expr="new Date();"/>
 </block>

<transfer name="transfer_result" ....>

 <!-- Catch hangup event, if caller hangs up, and create another new date object for end of call -->
 <catch event="connection.disconnect.hangup">
 <var name="callEnd" expr="new Date();"/>
 <!-- Call length is difference between call start and call end-->
 <assign name="callLength" expr="get_difference(callEnd, callStart)"/>
 <goto next="#submit"/>
 </catch>

 <filled>
  <!-- If callee hangs up, get call length from shadow variable -->
  <assign name="callLength" expr="transfer_result$.duration"/>
  <goto next="#submit"/>
  </filled>
 </transfer>

</form>

<form id="submit">
<!-- Submit call length to server -->
<block>
<submit next="http://www.someurl.com" namelist="callLength"/>
</block>
</form>

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