9 DIGITAL PRIVATE BRANCH EXCHANGES (PBXs); ROUTERS FOR DIGITAL NETWORKS; SWITCHES FOR PUBLIC OR CORPORATE NETWORKS, IN PARTICULAR PUBLIC TELEPHONE SWITCHES; NETWORK MANAGEMENT SYSTEMS; PRINTED WIRING BOARDS FOR PC AND OTHER MICROCOMPUTERS; NETWORKING BOARDS FOR PC AND OTHER MICROCOMPUTERS; VIDEO BOARDS FOR PC AND OTHER MICROCOMPUTERS; COMPUTER PROGRAMS FOR CONTROLLING PRINTED WIRING BOARDS, NETWORKING BOARDS AND VIDEO BOARDS, EACH FOR PC AND OTHER MICROCOMPUTERS; COMPUTER PROGRAMS FOR DATA COMMUNICATION; SOFTWARE FOR OPERATION OF TELECOMMUNICATIONS SYSTEMS; DEVELOPMENT ASSISTANCE SOFTWARE FOR SOFTWARE DEVELOPMENT; MULTIMEDIA HARDWARE AND SOFTWARE NAMELY HARDWARE AND SOFTWARE FOR CODING AND DECODING OF DATA, AUDIO AND VIDEO SIGNALS FOR PC AND OTHER MICROCOMPUTERS, ISDN-COMPATIBLE PRINTED WIRING BOARDS FOR CODING AND DECODING OF DATA, AUDIO AND VIDEO SIGNALS, ISDN-COMPATIBLE TELEPHONES, PC-CARDS (PCMCIA-CARDS), MODEMS; VIDEO-ON-DEMAND MULTIMEDIA HARDWARE AND SOFTWARE FOR OUTPUT OF DATA, AUDIO AND VIDEO SIGNALS FROM PC AND OTHER MICROCOMPUTERS; VIDEOCONFERENCING MULTIMEDIA HARDWARE AND SOFTWARE FOR TELECOMMUNICATIONS BETWEEN USERS OF PCs AND OTHER MICROCOMPUTERS; COMPUTER PROGRAMS AND DATABASES RECORDED ON DATA STORAGE MEDIA; COMPUTER SOFTWARE INCLUDED IN CLASS 9; IN PARTICULAR FOR THE FIELD OF TELECOMMUNICATION AND DIGITAL DATA TRANSMISSION; VIDEO CONFERENCING SYSTEMS AND INSTALLATIONS, CONSISTING ESSENTIALLY OF COMMUNICATIONS PROTOCOLS SOFTWARE AND APPARATUS FOR THE TRANSMISSION OF SOUND, VIDEO AND/OR MULTIMEDIA DATA AS WELL AS SOFTWARE AND EQUIPMENT FOR RECEIVING AND/OR DISTRIBUTING SOUND AND/OR PICTURE DATA (AS INCLUDED IN CLASS 9); MULTIMEDIA EQUIPMENT AS WELL AS COMPONENTS THEREOF (AS INCLUDED IN CLASS 9); EQUIPMENT AND SOFTWARE FOR VIDEO-ON-DEMAND (INCLUDED IN CLASS 9); ROUTERS; PRIVATE BRANCH EXCHANGES (PBXs); CENTRAL OFFICES FOR PUBLIC OR CORPORATE DIGITAL AND ANALOG NETWORKS; SWITCHES FOR PUBLIC OR CORPORATE DIGITAL AND ANALOG NETWORKS; DIGITAL NETWORKS; NETWORK MANAGEMENT SYSTEMS; TELECOMMUNICATIONS EQUIPMENT, IN PARTICULAR ISDN-FINAL EQUIPMENT, INSTALLATIONS; ISDN-TELECOMMUNICATION BOXES; ISDN-CARDS, IN PARTICULAR FOR PERSONAL COMPUTERS; PC-CARDS; PCMCIA-CARDS; APPARATUS FOR STORING, TRANSMITTING AND REPRODUCTION OF SOUND AND/OR VIDEO AND/OR DATA; MAGNETIC STORAGE MEDIA; DIGITAL DATA CARRIERS; DATA PROCESSING EQUIPMENT AND COMPUTERS, IN PARTICULAR MICROCOMPUTERS AND PERIPHERALS THEREFORE, SUCH AS MONITORS, MODEMS, PRINTERS, EXTERNAL DATA STORAGE, MICROPROCESSORS AND OTHER ELECTRONIC COMPONENTS FOR COMPUTERS