automatic redundancy
automatic regulator
automatic relay
automatic release
automatic request for repetition
automatic restart
automatic retransmitter
automatic ringing
automatic scan
automatic scrolling
automatic search
automatic search jammer
automatic segmentation
automatic selectivity control
automatic sending receiving (ASR)
automatic sequence
automatic shutdown
automatic signaling
Automatic stabilizers
automatic starter
automatic starting motor
automatic station
automatic switchboard
automatic switching
automatic switching system
automatic system reconfiguration
automatic telegraphy
automatic telephone message recorder
automatic telephone set
automatic telephone system