Communications system, especially telephone system

Claim 1

A communications system (KOM-SYST), in particular a telephone system, having a wire network (MOBI-D) and a radio network (MOBI-F), wherein is provided a central or a sub-central, stationary storage device (SI) which respectively contains an item of information for all actual locations of mobile subscribers, where the stored location information is used to control connections, which are to be established to mobile subscribers, in an exchange-oriented fashion, and wherein the storage device (SI) is used to establish both incoming and also outgoing connections from the radio network (MOBI-F) or the wire network (MOBI-D) into the one or the other network, characterised in that in a subscriber terminal device (TD, TF) which represents the respective calling or called side, a subscriber call number identification is carried out of that mobile subscriber, who is an active or passive user at the location of the respective subscriber terminal device (TD, TF), for which purpose an identification card reading device (L) is arranged in the subscriber terminal device (TD, TF), by means of which device (L) a user identification card (A), which is available to the individual subscriber and which at least includes one item of information concerning the subscriber call identification (KTM), can be read, that the subscriber terminal device (TD, TF) is assigned the subscriber call identification (KTM) which is allocated to the respective user identification card (A), where a plurality of user identification cards (A) can be read in and where the subscriber terminal device (TD, TF) is further firmly assigned an individual subscriber terminal device call identification, that the read-in subscriber call identification (KTM) together with a location identification (KS), which identifies the used identification card reading device (L) is transmitted to the storage device (SI) and stored as in the subscriber terminal device (TD, TF), that the location identification (KS) in the respective storage places can be automatically transferred by a new location identification (KS') in that the information content of the user identification card (A) is read into another identification card reading device (L), that the central or sub-central, stationary storage device (SI) transmits an erase instruction to a terminal device storage unit (TSP), whereby the location identification (KS) together with the subscriber call identification (KTM) or only the subscriber call identification (KTM) is erased, and that the respective read-in subscriber call identification (KTM) is additionally stored in the respective subscriber terminal device (TD, TF) and used to carry out subscriber-related switching and/or testing procedures.