We've install ip communicator 2.1(2) into iptel environment. We got 1 publisher and 2 subsriber with ccm version 4.1(3)sr5d in a cluster environment. Our problems is everytime we double click the ip communicator to start the ip communicator application, it will prompt with "Communicator-Exception Error" , the error message is : "Unable to initialize support for Cisco Emergency Responder service" . Attached is the screenshot. Please share any idea with this issue? Thank you very much.