A long time ago I used to run a bulletin board system (bbs). This was probably 1993-94 I was 14-15 at the time. Back then the internet was pretty useless for information and everyone did the bbs thing. I'm not going to say the bbs name or anything like that but I did a search and came across this article by Q. I'm pretty sure this was written long before it appeared in PIMP, actually I am quite positive. Anyway; it's sad that you still can't find good writing like this unless you read acm papers. Everything I know about the phone system I learned from Q and our conversations on tdb and tdf.. it's been nearly a decade since last convo. It's a long story i'm not gonna rehash here and i'm sure if you want to do the triaging you can find some pretty good reading about it; anyway.. I had this setup in my parents basement all those years ago.. I could probably still put one together... No one remembers red boxes, rainbow boxes, blue boxes.. those days are over.. everyone is all grown up now. The sad part is.. Â No one writes like this anymore..... .. .. or.. 
maybe I need to pay the wrc a visit and catch up. Formatting is fudged but you can search for the title of the paper for proper diagram formatting.
Optoelectronic Eavesdropping Techniques
A long time ago I used to run a bulletin board system (bbs). This was probably 1993-94 I was 14-15 at the time. Back then the internet was pretty useless for information and everyone did the bbs thing. I'm not going to say the bbs name or anything like that but I did a search and came across this article by Q. I'm pretty sure this was written long before it appeared in PIMP, actually I am quite positive. Anyway; it's sad that you still can't find good writing like this unless you read acm papers. Everything I know about the phone system I learned from Q and our conversations on tdb and tdf.. it's been nearly a decade since last convo. It's a long story i'm not gonna rehash here and i'm sure if you want to do the triaging you can find some pretty good reading about it; anyway.. I had this setup in my parents basement all those years ago.. I could probably still put one together... No one remembers red boxes, rainbow boxes, blue boxes.. those days are over.. everyone is all grown up now. The sad part is.. Â No one writes like this anymore..... .. .. or..
maybe I need to pay the wrc a visit and catch up. Formatting is fudged but you can search for the title of the paper for proper diagram formatting.