The result is a functional intercom that you could use pretty much anywhere! The circuit to make two phones work as an intercom is extremely simple. You can see in the picture below, all you ...
Intercom, Speakerphone, Caller ID / Call Waiting, 17-Minute Digital Answering System, Expandable Up To 6 Handsets, 3 Handsets included.
1 entrances Intercom for health care facilities, schools, buildings, auto service centres, parking garages. Masters in 10, 20, 30 and 40 station sizes with or without handset.
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