канал радіотелефонного зв'язку
telephone channel
voice channel
field telephone set
telephone operator
radio telephone operator (RTO)
private line, telephone (PLT)
battery powered telephone
intratank telephone
telephone communication
telephone connection
wire telephone
amplifying telephone
electronic telephone switchboard
voice amplifier
voice circuit
voice communications station
voice procedure
voice protection unit
voice-frequency
voice communication
by voice transmission
establishment of voice connection
voice connection
voice input
voice or data connection
voice output
voice recorder system
voice signal
voice terminal
voice warning
data above voice
data in voice