You can go and play with an old branch exchange, with all the whistles and er, bells at "This Museum is (not) Obsolete". Run by Sam from Look Mum No Computer. If you're ever near Ramsgate in the UK.
https://this-museum-is-not-obsolete.com/
He also has a fascinating YouTube channel, I'm a big fan. Lots of old musical equipment and experiments in addition to telephony.
See also in West Sussex:
https://www.amberleymuseum.co.uk/explore/explore-communicati...
He also has a fascinating YouTube channel, I'm a big fan. Lots of old musical equipment and experiments in addition to telephony.