not only is there derelict wireing in houses, there is very often derelict wireing to the street, and often spare or derelict "pairs" at the demarcation blocks.

not only is there derelict wireing in houses, there is very often derelict wireing to the street, and often spare or derelict "pairs" at the demarcation blocks. with a signal sniffer, a jacknife, and stealth, all while wearing a grey hat, one could revive parts of the analog phone system