Thanks for playing! I will have to confess the concept is from a minigame in a PC spy game from the very early 90s (you are wiretapping phones). It confused me at the time but was kinda fun when I got the hang of it. I wanted to see if I could define it sufficiently and get a prototype built quickly...
Re: the disconnecting / connecting. Yes, this is actually something that's always bugged me about this game. I probably should have listened to my nagging conscience and inverted it. I'll probably do that and bung it into another game I'm working on as a mini-game. Thanks again.