processing device dv 5 consequently the document is printed by the application aw 5 using the resource pr it goes without saying that status messages from the resource pr which are produced in the process are returned to the application aw 6 via the same route it is subsequently assumed that the application aw 6 is a communication application for a voice data network voip network in a similar way to the example described above the application aw 6 can then use the representative entity si 7 and the application aw 7 to use the resource gw for communication links to communication partners in the network nw 3 in this context the representative entity si 7 is what is known as a u201c proxy u201d which uses the application aw 7 and hence the resource gw in the data processing device dv 7 instead of a locally installed application in so doing the representative entity si 7 u201c terminates u201d the connections which are routed from the application aw 6 via the network nw 2 to the communication partner the second information useful data interchanged via this connection is converted by the representative entity si 7 into a further data stream further connection which is routed via the application aw 7 and the resource gw to the communication partner in the network nw 3 it goes without saying that the use of the representative entity si 7 is dependent on authentication which.