Telecommunication 11 Computer networks 8 Computer network protocols 5 Telecommunication systems 5 Multimedia systems 4 Security measures 4 Artificial satellites in telecommunication 3 more ... Asynchronous transfer mode 3 Broadband communication systems 3 Internet 3 Internet telephony 3 Management 3 Standards 3 Evaluation 2 Handbooks, manuals, etc 2 Market surveys 2 Optical communications 2 Quality control 2 Session Initiation Protocol (Computer network protocol) 2 Telecommunication policy 2 Telephone systems 2 Traffic 2 Cellular telephone systems 1 Client/server computing 1 Competition, International 1 Computer network resources 1 Computer programs 1 Computer security 1 Computer-assisted instruction 1 Computers 1 less ...