MickeyD
RIP
BT's Openreach infrastructure division, which will soon escape from the BT mothership with some 32,000 employees under its twisted copper arms and form a separate company, has released a 360-degree walkthrough video of a modern telephone exchange. This is somewhat unusual: there are low-res photos of telephone exchanges online, and some historical illustrations of telephone exchanges for educational purposes, but a high-res walkthrough of an active exchange is quite rare.
Full article: https://arstechnica.co.uk/gadgets/2017/03/telephone-exchange-video-details/
[video=youtube;q094tc0BNkk]https://www.youtube.com/watch?v=q094tc0BNkk[/video]
PS. Not much here but watch the other video and then click on the hyperlink in the last paragraph (how the internet works) for a really great explanation.