Telecommunication 2,638 Telecommunications 1,421 Communications Engineering, Networks 1,222 TECHNOLOGY & ENGINEERING 1,191 Télécommunications 822 Computer networks  625 Computer Communication Networks 615 Microwaves, RF Engineering and Optical Communications 511 BUSINESS & ECONOMICS 493 Engineering & Applied Sciences 485 Electrical & Computer Engineering 473 Industries 446 Media & Communications 418 Computer networks 399 Signal processing 396 COMPUTERS 365 General 364 Réseaux d'ordinateurs 342 Signal, Speech and Image Processing 333 Internet 235 Wireless communication systems 232 Transmission sans fil 218 Telecommunication systems 217 Application software 210 Mobile communication systems 208 History 206 Radiocommunications mobiles 200 Examinations 196 Certification 187 Laser 187