3.11.01 Network Installation/Support Services
3.11.02 Software Development and Support Services
3.11.03 Computer Based Modelling Services
3.11.04 Computer Based Simulation/Training Programs Services
3.11.05 CAD/CAP Services
3.11.06 Hardware Installation Support Services
3.11.07 Operating Systems Installation/Support Services
3.11.08 User Support/Help Desk Services
3.11.09 IT Management Consultancy Services
3.11.10 Data Management Services
3.11.11 General IS/IT Consultancy Services
3.11.20 Telecommunication Installation/Support Services
3.11.21 Data and Message Transmitting Services
3.11.22 Rental of Telecom Lines
3.11.23 Telecom Subscription Services
3.11.24 Public Address System Services
3.11.98 Other Communication Services
3.11.99 Other Information Systems (IS)/Information Technology (IT) Services