10 kV communication access system
Command control communication system
Command control communication intelligence system
Command control communication computer intelligence（C4I） system
command control and communication system
command communication and telemetry system
Coherent Communication System
close-loop wireless communication system
closed circuit communication system
China Top communication system
chaotic communication system
Chaos-Shift-Keying (CSK) communication system
centralized communication system
Cellular mobile communication system
Cellular Data Communication System
cellular communication system