Remote control using telephone

Here is a teleremote circuit which enables switching ‘on’ and ‘off’ of appliances through telephone lines. It can be used to switch appliances from any distance, overcoming the limited range of infrared and radio remote controls.
circuit

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Categories: Electronics
14 July 2009 at 00:52 - Comments
yahya at 11:07 on 24 July 2009

remote control circuit using tel line

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vinod at 21:36 on 10 January 2010

In the circuit dtmf ic cannot detect key press event in on hook state. So the circuit is totally wrong.

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