There’s something so nostalgic about the rotary phone that makes it a fun thing to hack and modernize. [Voidon] put his skills to the test and converted one to VoIP using a Raspberry Pi. He used the ...

I have an old rotary dial POTS phone lying around, and I thought it would be cool to be able to use it to make calls. The most flexible way to do that would be to have it act as a mic and speaker that ...