I’ve worked for a few of the larger ISPs in the US. They all have their own special weird shit like a windows NT machine shoved in a corner in a CO in west Texas that you have to remote desktop into and run some java applet from the 90 to log into a hardwired machine from the 70s just to set up a voicemail box for a phone line. Ain’t broke don’t fix it leads to some wild setups at companies you wouldn’t expect it from.

Careful, sometimes they’ll come out just to pull your plug from a concentrator when you disconnect, or it just happens when they’re hooking up a new customer and yours gets unplugged to make room. But then they turn around and charge like $50 just to come out and plug that back in for a new install. That can be the entire install, you can bring your own modem and have everything fine inside, but some yahoo charges $50 to come out and plug some coax into a concentrator in a box 20 ft from your house that they unplugged for free last week.