Nice!! Wonder if it's a twin to mine (which looks spectacular, btw).
On Space Phone: it needs a pulse line to work properly. Since I have VOIP, I can only use tone. That means I can answer calls on my Space Phone but not make them.
I find Space Phone a little tricky at times since it's essentially a one-way system (you have to mute the other party while you're talking), but it sounds nice. It's
digital, y'know.