Reply to post: Re: Rotary dials

IT peeps, be warned: You'll soon be a museum exhibit

Mage Silver badge

Re: Rotary dials

You can even buy the parts and breadboard a rotatary to DTMF. A pi or old laptop with serial port (sense a handshake line) can do it. Even easier if old laptop has a built in modem (AT D command).

Some exchanges and ATAs do still support pulse dialing.

Two analogue phones (any kind) and a 6V battery all in series makes an intercom. We used top & bottom wire of a fence when we were kids.

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