Lived in a student accommodation (pre-mobile but after most rotary dialers) which had a phone for receiving incoming calls which had no touchpad or dialer on it to "prevent" students making calls but otherwise was an ordinary line. The phone system recognised two signalling types, touch tones and the older pulses sent by rotary dials. It was possible to simulate a rotary dialer by tapping the hook switch the number of times of the digit or 10 for zero with a pause between each digit.
Kids React has a similar video, <a href="https://youtu.be/XkuirEweZvM" rel="nofollow">https://youtu.be/XkuirEweZvM</a><p>They’ve got a lot of videos of kids interacting with old tech, they’re quite funny.