Rotary dials
You can buy pulse to DTMF converters so you can use old school rotary phones even on your VOIP phones (though why VOIP ATAs can't add support for pulse dialing I don't understand, it would take one guy an afternoon)
I'm kind of thinking about stealing the old green princess phone my parents still have in their basement sometime and get one of those converters just to freak out millennial visitors who would be shocked not only by a "landline" but wondering how you access the contact list :)
Biting the hand that feeds IT
