84 lines
5.0 KiB
Plaintext
84 lines
5.0 KiB
Plaintext
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THE VIOLET BOX
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Picture the scene ..... a payphone in a rural or suburban area, where
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all the telephone wires are overhead ..... next to the phone box is a
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telegraph pole with only one wire going down it ..... no prizes for
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guessing where it goes to. It might at first sight look like a prime
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site for beige boxing. However, there are obvious disadvantages to
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beige boxing here, like getting caught ..... thus, the violet box was
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created. Basically it is a way of emulating some beige box functions
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without the actual beige box, but it does have the same requirement of
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needing physical access to the line. *WARNING* The person on the other
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end may very well twig you are using this device. Only phone people you
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can trust.
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HOW TO MAKE IT
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Get a 470 ohm resistor and a pair of crocodile clips. Connect a
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crocodile clip to each end of the resistor. That's it. I was going to
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call this the "yellow, violet and brown box" but I decided that name
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was too long, so I'll stick to just violet, because it sounds nice.
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HOW TO USE IT
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First, you need a beige boxing point that is not too far from the
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phone. Clip one leg of the resistor on, leave the other end for the
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time being. Lift the handset, put in your money and key the number. As
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soon as it starts ringing out, it's action stations! Clip the other
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side of the resistor on and dash back to the phone. Depress the
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receiver rest for a few seconds, then let go. The person on the other
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end might have answered while you were doing this, let's just hope they
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didnd't hang up ..... anyway, you're now ready to talk. BUT every few
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minutes the phone will go 'dead' for a few seconds ..... it won't cut
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you off though.
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HOW IT WORKS
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When a phone is on the hook it has a high resistance to DC and so
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hardly any current flows through it. (but it has a low resistance to AC
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because AC is what makes the bell ring.) When it is lifted, it has
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quite a low resistance, actually about 600 ohms. The 470 ohm resistor
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connected across the line fools the exchange into thinking the handset
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was up the whole time. It has to be disconnected for dialling, because
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pulse dialling (which is the only sort that works from payphones) works
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by opening and closing the circuit to stop and start the flow of
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current, so if the resistor was connected there the current would never
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stop flowing, and no dialling pulses would be sent. When you connect
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the resistor, the exchange just thinks there are 2 phones on the line,
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it can handle up to 4 so it's no problem. Then you hang up the
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payphone, now the exchange thinks there is just one phone; when you
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lift the receiver again, the payphone is sitting across a line with
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something already happening, so it just lets you listen to this. Of
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course, after a while it decides it's had enough of that, and tries to
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cut you off. But it doesn't manage it, because the resistor is keeping
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the line in use. The phone may be able to ring the exchange and report
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the "fault" but it can't even do that until after you have disconnected
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the resistor and made a getaway .....
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ALTERNATIVE USE
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---------------
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If you also have a beige box, and access to an enemy's phone wiring
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outside the house (eg. the wires from a telegraph pole) you might like
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to try this use for the violet box ..... this can SERIOUSLY do people
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over ..... beige box from their line to anything, but the more
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expensive and embarrassing the service, the better ..... Australian
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kinky sex lines? the mind boggles ..... anyway, stick the violet box
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on, disconnect the beige box and run like hell.
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Brought to you by ...... . .... . . ... .....
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: :..: :.. :.' .:.......:.
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: : : :... : `. `... .:...
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disclaimer: this is for informational purposes only. no responsibility
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is accepted for any consequences of use or misuse of any information
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contained herein. any material whose source i have not acknowledged is
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believed to be my own - if it sounds like something you invented, just
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remember great minds think alike.
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