Reviving Analog Rotary Phones with Raspberry Pi - Building a Private Telephone Exchange

Explore a fascinating open-source project that breathes new life into old rotary phones using Raspberry Pi technology. Dive into the world of automated telephone exchanges that mimic setups from various countries, offering users an authentic experience. Learn about the advantages of rotary dial phones, including reduced electrosmog emissions and eavesdropping protection. Discover how to construct a private telephone exchange for eight people using Raspberry Pi and custom analog electronics. Gain insights into call initiation, routing, full duplex voice transmission, and human-machine communication. Examine the software implementation on Linux-powered Raspberry Pi and explore opportunities to enhance the open-source software with additional functionalities. Join this 42-minute talk to uncover how readily available hardware and programmable software make this project accessible to everyone interested in repurposing outdated technology and promoting a slower pace of life.

37C3 - Analog rotary phones get a second life with raspberry pi