Circuit arrangement for integration of EDP systems with the use of telephone systems

The invention relates to a circuit arrangement for integration of EDP systems with the use of telephone systems which are connected to the public telephone network ISDN. The object is to connect an ISDN-based telephone system to an EDP system in such a way that all the functions of the EDP system or the user software can be implemented when the telephone system is used. The object is achieved according to the invention, as shown in Figure 1, with a circuit arrangement comprising * the telephone sets (2; 11; 13) which are connected via the line (a) and the intelligent telephone system (3) directly to the public telephone network ISDN (1), and * an integration element (5) which is disposed between the intelligent telephone system (3) and the personal computers (4; 12; 14) and which once receives signals via the SDLC connection element (8) by means of line (b) from the public telephone network ISDN (1) and via the intelligent telephone system (3), transmits signals back to the public telephone network ISDN (1) and which furthermore transfers a data record, provided with corresponding information, via the line (c), the LAN (9), which is connected via the line (d) to the LAN server (10), and via the line (e), to the personal computers (4; 12; 14) and which in turn receives the data record of the personal computers (4; 12; 14), the signals being converted into the data record and vice versa by the integration element (5) by a computing system (6), a ... Original abstract incomplete...