Here is the content of web.config file
<services>
<service behaviorConfiguration="TESTService.ServiceImplementation.TEST_Behavior" name="TESTService.ServiceImplementation.TEST">
<endpoint binding="wsHttpBinding" bindingConfiguration="transactionalWsHttpBinding" bindingNamespace="
http://TESTService.ServiceContracts/2007/07" contract="TESTService.ServiceContracts.ITEST"/>
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
</service>
</services>
<bindings>
<wsHttpBinding>
<binding name="transactionalWsHttpBinding" transactionFlow="true" receiveTimeout="00:10:00" sendTimeout="00:10:00" openTimeout="00:10:00" closeTimeout="00:10:00">
<reliableSession enabled="true" ordered="true" inactivityTimeout="00:10:00"/>
</binding>
</wsHttpBinding>
</bindings>