If you came of age in the 1990s, you’ll remember the unmistakable auditory handshake of an analog modem negotiating its connection via the plain old telephone system. That cacophony of screeches and ...

The circuit presented here can be used for connecting two telephones in parallel and also as a 2-line intercom. Usually a single telephone is connected to a telephone line. If another telephone is ...

The circuit was designed to provide a monitoring scheme for a telephone line where several phones are installed, to indicate when one is being used. 4N25 – a general purpose optocoupler that consists ...

Probably not the best thread title. My current setup is. I have a DSL telephone copper line that runs from my street cabinet to my room where I have my computer and into the wireless routers port.

Say farewell to the landline telephone. AT&T is phasing out the system by the end of this decade. The process has already begun in Stark County and throughout Ohio. Thoughts and prayers for the copper ...

TELEGRAPHY AND TELEPHONES. Cleveland's connection to the rest of the U.S. by telegraph line was a communications breakthrough essential to the city's commercial and industrial development. During ...

If you still have a landline telephone, then you may be old enough to remember smelly phone booths and the rotary dial. That is one finding from a surprisingly deep trove of research on the ...