function can uniquely define the address of the board to be tested in the real telecommunication network the test request in this case advantageously also includes the identification of the manufacturer specific test predefined for the current board the test results sent back from the network unit here btse 8 are once again converted by the mediation function in the operation and maintenance center omc in accordance with the information model of the omc nmc interface and uniquely correlated with the previous nmc test request of the network management center nmc with the aid of the standardized parameter of u201c testlnvocationld u201d in this case after the standardized nmc test command the omc sends a response that includes the parameter value of u201c testlnvocationid u201d so that a test operation is uniquely characterized subsequent to the end of the test the same value is inserted into the testresultnotification for the network management center nmc by the operation and maintenance center omc the mapped or mediated test results can also be used by the nmc software for automatically generating what are termed trouble tickets so that appropriate repair measures can be initiated on site the definition of the omc nmc interface additionally and or alternatively also permits the automatic generation of periodic preventive.