more expensive rate than for a terminal 41 which is installed in a privately used apartment of course such different billing rates vis u00e0 vis the customer can be justified by corresponding differences in the service quality as shown in fig1 the telecommunication network 52 and the telecommunication network 42 are connected together so that telecommunication connections may be established between the mobile terminal 1 and the terminal 60 as well as between the terminals 40 41 and the terminal 60 corresponding gateway devices are used for connecting the telecommunication networks 52 42 the identification module 2 can now be set up such that it is possible at definable points in time to check whether a local connection to a location tag can be set up via the wireless interface of the identification module 2 thus through the identification module 2 a request for transmission of data of a location tag may be transmitted at definable points in time for example such a request can be based for example on a zigbee standard or a bluetooth standard and can comprise for instance an identification or an encrypted identification such an identification or encrypted identification can be evaluated by correspondingly configured location tags however such an identification or encrypted identification cannot.