Special Features:

Consists of exchange cabinet, central control unit and 2 lm-20 line modem units; 16 line exchange; comprised of cpu which processes exchange procedures, 2 links, tone generating circuit, power circuit, circuit for connecting stations to speech paths, circuit to transmit signals to links, receiver and scanning circuits and terminal block

Properties:

An item which may provide two-way amplified voice communications when connected to one or more like stations directly or via intermediate control equipment; includes loudspeaker (which may be used as a loudspeaker or microphone), signalling devices, amplifier and station selector switches. May include separate microphone, earphone, handset or headset. See also, telephone connecting station.