I did ask one of the great docents there to explain blue boxing to me. He pulled out an blue suitcase-like box and showed me how it all worked. For what it is

I did ask one of the great docents there to explain blue boxing to me. He pulled out an blue suitcase-like box and showed me how it all worked. For what it is worth, they can't do the 2600 line seize there, but they could patch directly into a trunk and send tones from there.