42 ADMINISTRATION OF NETWORK SYSTEMS, NAMELY THE INTEGRATION OF COMPUTER SYSTEMS AND TELECOMMUNICATIONS AND DATA NETWORKS; TELECOMMUNICATIONS AND NETWORK DESIGN FOR OTHERS AND COMPUTER SOFTWARE DEVELOPMENT FOR TELECOMMUNICATIONS AND DATA NETWORKS; MONITORING THE TELECOMMUNICATIONS OR DATA SYSTEMS OF OTHERS FOR TECHNICAL PURPOSES, NAMELY, FOR ERROR DETECTION AND REMOVAL; AND PROVIDING BACK-UP COMPUTER PROGRAMS AND FACILITIES IN THE FIELD OF TELECOMMUNICATIONS; AND MONITORING OF TELECOMMUNICATIONS AND DATA SYSTEMS FOR SECURITY PURPOSES; ADMINISTRATION OF NETWORK SYSTEMS, NAMELY THE INTEGRATION OF COMPUTER SYSTEMS AND TELECOMMUNICATIONS AND DATA NETWORKS; TELECOMMUNICATIONS AND NETWORK DESIGN FOR OTHERS AND COMPUTER SOFTWARE DEVELOPMENT FOR TELECOMMUNICATIONS AND DATA NETWORKS; MONITORING THE TELECOMMUNICATIONS OR DATA SYSTEMS OF OTHERS FOR TECHNICAL PURPOSES, NAMELY, FOR ERROR DETECTION AND REMOVAL; AND PROVIDING BACK-UP COMPUTER PROGRAMS AND FACILITIES IN THE FIELD OF TELECOMMUNICATIONS; AND MONITORING OF TELECOMMUNICATIONS AND DATA SYSTEMS FOR SECURITY PURPOSES