This has come up a number of times on IRC, and I wanted to give the topic some more exposure here in the forum:
@sur5r is interested in some kind of ISDN/PSTN setup and setting up retronetworking gear at EasterHegg 2024. In case there are other people interested in setting up something retronetworking related, please reach out here or on #retronetworking (on https://libera.chat/).
I personally will sadly not be able to attend as my office has to move around that time, adding lots of additional tasks on my plate that need taking care of.
OT: I should have my own physical G4 fax machine from March onwards. I don’t yet know if it is in fully working condition. If it does, by the time Easterhegg happens we should even be able to test remote G4 fax from the event via OCTOI to my home.