http://robruark.com/projects/telephone/telephone.html

Field Telephone

2014

I was working the summer at a Boy Scout camp in 2009 and wanted a way to communicate between two buildings across a large field. I had seen military field telephones before, but I did not want to spend the money to buy one. Instead, I rewired two old rotary dial phones to work as point to point field telephones.

Using hard wired telephones instead of radios is a little impractical most of the time, but they don’t need to be charged an they’re a neat thing to have. I set them up in college to connect my kitchen to my detached garage, and every engineer I had over wanted to play with them.