Not able to return soap fault

Hi,

I have a wcf service.I am constructing a soap fault in an orchestration and created a fault msg on the Request-Response port.All i am trying to do is validating the schema and if any validation fails i am trying to return a soap fault to the caller with the error description.

Just for my test purpose i had a send shape prior to sending out the soap fault i was able to capture the soap fault till then but when i test it thru soap UI i am not able to see that soap fault

When i test in SOAP UI this is wat i am getting as response

<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
   <s:Body>
      <s:Fault>
         <faultcode xmlns:a="http://schemas.microsoft.com/net/2005/12/windowscommunicationfoundation/dispatcher">a:InternalServiceFault</faultcode>
         <faultstring xml:lang="en-US">The server was unable to process the request due to an internal error.  For more information about the error, either turn on IncludeExceptionDetailInFaults (either from ServiceBehaviorAttribute or from the &lt;serviceDebug> configuration behavior) on the server in order to send the exception information back to the client, or turn on tracing as per the Microsoft .NET Framework 3.0 SDK documentation and inspect the server trace logs.</faultstring>
      </s:Fault>
   </s:Body>
</s:Envelope>

sri