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Use old phones as an intercom

Example: Infrared control system
Electronic circuits archive 

Use old phones as an intercom


Related electronic circuits:

Doorphone Intercom

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The Surfer’s Preserver. It is a simple device that prevents other phones in the house from disrupting your critical Internet session by disconnecting them from the line while you surf! It is also useful in preventing eavesdropping from other extensions.

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Use old phones as an intercom

ATTENTION! Use old phones as an intercom, as all other schemes are located on the sites of their rightful owners. We are not liable for the contents of other sites as well as the site having a circuit Use old phones as an intercom. Pressing the button you must get onto a page with Use old phones as an intercom.

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