kp req001348756 u201d and transmits it to the previously determined url namely to the url u201c providera com u201d through which this query message is transmitted to configuration server ksa in configuration server ksa in another data base a determination is made of whether the authentication code u201c 001348756 u201d just received by means of the query message is valid and thereafter determines which parameters are to be made available to user n 1 with this authentication code ac these data are now transmitted as a configuration record u201c kp 001348756 xyz u201d to terminal eg 1 and are there used on terminal eg 1 in those instances in which user n 1 at the start of the procedure had to enter a pin into terminal eg 1 this pin can be transmitted either with the first query message to address server as or u2014 more customarily u2014 with the second query message to configuration server ksa with continuation of the procedure able to be made dependent on the correctness of the pin in each case in the present embodiment example terminal eg 1 was now equipped with basic data for a successful voip communication thus for example with address information of a suitable gateway of an sip proxy server or the like also a user name and a user identification for use of these central devices gateway proxy server have been queried with the procedure from configuration server ksa in.