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******************************************************************************
* *
* Tapping Telephone Lines *
* *
* Voice or Data *
* *
* For Phun, Money, and Passwords *
* *
* Or How to Go to Jail for a Long Time. *
* *
******************************************************************************
Written by Agent Steal 08/87
Included in this file is...
* Equipment needed
* Where to buy it
* How to connect it
* How to read recorded data
But wait!! There's more!!
* How I found a Tymnet node
* How I got in
*************
THE EQUIPMENT
*************
First thing you need is an audio tape recorder. What you will be
recording, whether it be voice or data, will be in an analog audio format.
>From now on, most references will be towards data recording. Most standard
cassette recorders will work just fine. However, you are limited to 1 hour
recording time per side. This can present a problem in some situations. A
reel to reel can also be used. The limitations here are size and availability
of A.C. Also, some reel to reels lack a remote jack that will be used to
start and stop the recorder while the line is being used. This may not
present a problem. More later. The two types of recorders I would advise
staying away from (for data) are the micro cassette recorders and the standard
cassette recorders that have been modified for 8 to 10 hour record time. The
speed of these units is too unstable. The next item you need, oddly enough,
is sold by Radio Shack under the name "Telephone recording control" part
# 43-236 $24.95. See page 153 of the 1987 Radio Shack catalog.
*****************
HOW TO CONNECT IT
*****************
The Telephone recording control (TRC) has 3 wires coming out of it.
#1 Telco wire with modular jack. Cut this and replace with alligator clips.
#2 Audio wire with miniature phone jack (not telephone). This plugs
into the microphone level input jack of the tape recorder.
#3 Audio wire with sub miniature phone jack. This plugs into the "REM"
or remote control jack of the tape recorder.
Now all you need to do is find the telephone line, connect the alligator
clips, turn the recorder on, and come back later. Whenever the line goes off
hook, the recorder starts. It's that simple.
****************
READING THE DATA
****************
This is the tricky part. Different modems and different software respond
differently but there are basics. The modem should be connected as usual to
the telco line and computer. Now connect the speaker output of the tape
player directly to the telephone line. Pick up the phone and dial the high
side of a loop so your line doesn't make a lot of noise and garble up your
data. Now, command your modem into the answer mode and press play. The tape
should be lined up at the beginning of the recorded phone call, naturally, so
you can see the login. Only one side of the transmission between the host and
terminal can be monitored at a time. Going to the originate mode you will see
what the host transmitted. This will include the echoes of the terminal. Of
course the password will be echoed as ####### for example, but going to the
answer mode will display exactly what the terminal typed. You'll understand
when you see it. A couple of problems you might run into will be hum and
garbage characters on the screen. Try connecting the speaker output to the
microphone of the hand set in your phone. Use a 1 to 1 coupling transformer
between the tape player input and the TRC audio output. These problems are
usually caused when using A.C. powered equipment. The common ground of this
equipment interferes with the telco ground which is D.C. based.
I was a little reluctant to write this file because I have been