Telecommunications

HOW TO – Build a home phone-exchange

HOW TO – Build a home phone-exchange

Markus writes – “This miniature, 8-line home telephone exchange (PABX) works with standard telephones and features high-quality, user-friendly progress tones. Connection to telephones is via a two-wire unbalanced loop with a common ground. Only pulse dialling is supported although the exchange could be adapted to use a DTMF tone decoder.” Lots of schematics and photos […]

Homebrew WISP ( Wireless ISP)

Homebrew WISP ( Wireless ISP)

Talking Electronics writes – “This project is to make a homebrew wireless ISP in your neighborhood, this is to share your internet connection using wireless technology. Although we have questions about security issues but I won’t be touching that topic, my reason for this blog is just to show how powerful this technology is and […]