Functions and features:
1) Master stations of 10-route intercoms may connect 10 pairs of intercom extensions
for visitation at one time
2) Master station may set, control and display talking time of each intercom
extension, and display if each extension is in-talk by LED
3) Listen to the talk of each extension (or with earphone), with realistic, clear
voice and adjustable volume, and there is no consciousness in the extension.
4) The master station has recording jack which may output audio signal to achieve
recording function
5) Easy installation, connect the extensions with non-polar N + 1 core wires
Extensions:
1) Each pair of substations will be used with only one master station. Intercoms can
be realized after picking up the substation
2) The conversation time is set as 20 minutes at factory. The master station will cut off
the power of substation after 20 minutes' talk. The time will be counted down from
the moment when substation is picked up. The communicating time will be displayed
on the LCD
3) "Bi, Bi" voice prompts will sound when there is only one minute left
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"Intercom System for Prison Visitation" are from the Internet, the copyright belongs to the
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