Making connections
The phone exchange is now in a (reasonably) convenient place where I can work on it. It's got power, but nothing else is connected... yet!
The exchange is equipped for up to 50 lines. These line circuits can be used directly for phones, or can be converted into "tie lines" which connect to the outside world. We're going to use that functionality to connect to an Asterisk VoIP server, which in turn can connect to the rest of the phone systems on site.
I'm getting ahead of myself though... To make any of this happen, we need to sort out the cabling.