Abstract: On establishing and/or changing a service, information relating to the functional properties and topological arrangement of network elements relevant to provision of said service is stored in a network element database and allocated to the service The information stored in the network element database is made available to a service quality and/or an error monitoring device. Recorded measured values are compared with the information stored in the network element database by the service quality and/or the error monitoring device for inadmissible deviations. On an inadmissible deviation a message is generated about a reduced server capacity giving details of the service concerned.

Abstract: In a communication system having connector modules, a switching network serving for the through-connection of calls, a central signal channel, as well as a multiprocessor system for central control, patch methods must take specific multiprocessor properties of the communication system into consideration. After the call-in of a patch command composed of a plurality of sub-components and provided with a plurality of destination addresses, a branching is implemented to the patch processes residing in the respective local memory systems of the various connector modules or of the multiprocessor system. Furthermore, after evaluation of the sub-components, information data corresponding to code modifications are edited.