communications intelligence (COMINT) (a subset of SIGINT)

foreign instrumentation signals intelligence (FISINT) (a subset of COMINT / SIGINT)

signals intelligence (SIGINT)

mobile SIGINT/EW system

Israeli Sigint National Unit (ISNU)

Battle Management, Command, Control, Communications and Intelligence (BMC3I)

command, control, communications, computers, and intelligence (C4I)

command, control, communications, intelligence (C3I)

communications and intelligence system

C3I command, control, communications & Intelligence

forward area air defense command, control, communications and intelligence (FAAD C3I)

Secret Intelligence Service (SIS) / Military Intelligence, Section 6 (MI6)

tactical intelligence / combat intelligence

undeclared member of the intelligence or counter-intelligence agencies

air-to-ground communications equipment

Allied Tactical Communications Agency (ATCA)

analog communications

area communications system

battlespace communications network

command and communications ship

command and control communications

command communications

command communications system

command, control, communications, and computers (C4)

command, control, communications, computers, cyber-defense, combat systems (C6)

command, control, computers, communications, cyber-defense (C5)

commercial satellite communications (COMSATCOM)

communications (comm) (= communication)

communications agency

communications and control systems maintenance

communications and electronic security

communications breakdown

communications by sound