Just a quick question: anyone have any ideas how to connect 2 phones together like they have in prison (2 people sit on opposite sides of the plexi each with a phone and can talk to eachother)
this is for my Death Row scene in my haunted house for 08.
*Please help i am stumped.
Thanks!!!
happy haunting

Give this a try. It's a very simple circuit that requires 2 phone jacks, 1 wall wart and a resistor.

Use old telephones as an intercom