--------------------
Copper Box
--------------------

  Disclaimer (I know...):
    This file is for informational purposes only.  No use of this technique
  is recommended for one of many reasons: 1) It makes other Phreaks & hacks
  very upset, 2) It makes the Telco VERY upset, and you could be put away for
  a LONG time if you dont know what youre doing.  Telco employees could learn
  something from the Copper Box. Well, anyway, off we go....

  Purpose:
    This box can destroy a phone company, no matter how big.  You could bring
  AT&T down to their knees!  Only to be used by the most irate of Phracks,
  it is intended for informational purposes only.

  History:
    This is really not a Box, but if you consider a Cheese Box a Box, then it
  is.  It was first concieved back in 1986 when a Phriend and I came up with
  the idea while using a Copper-coloured fone, hence, a Copper Box.

  Instructions:
    You must obtain [1] extender, or phone company port, like an MCI or SPRINT
  access number.  [2] A hell of a lot of nerve, and vendetta towards the phone
  company (phriend gets busted, rates increase, etc.) [3] a computer & modem
  capable of autodialing [tone.]

    Dial the number of the L/D service, then enter the code.  Dial the number of
  the service again, through the outdial number you are still on, enter code,
  then dial again and again.  You should hear, after a while (it will take a
  long time for BIG companies) a slight high-pitched, unstable tone, that grows
  louder and louder w/every dial.  Once it gets so loud that it refuses to let
  in any more sounds, you have just completed the first cycle of the Copper Box.
    Leave line off-hook for about 10 minutes or until the tone seems to calm
  down, or stop completely.  Then, dial again and repeat over and over again
  until when you dial a last time, it [the port] doesnt answer.  You have just
  killed a telephone company, extender, etc.

  Theory of Operation:
    What happens is that when the tone begins to rise, it is a result of cross-
  talk feedback.  The more you dial,  the more it grows.  In systems like these,
  the small, sensitive equipment such as amplifiers, etc. begin to burn out as
  a result of the feedback, damaging the equipment, and possibly starting a fire
  at the location of the equipment.

--------------------