Post #2027497

@leymoo @Theresacityinmymind The UK switchover from analogue strowger to System X (& System Y), took a very long time, most of the 80s and into the 90s before it was completed. It did however leapfrog the crossbar systems used in other countries, going straight from electro-mechanical to digital. I do recall various UK universities and employers I was at in the early 80s having fully digital PABX systems ahead of the PSTN going digital. It's possible but unlikely the chat room was a PABX digital conference bridge, but I suspect the analogue theory is more plausible.