51 lines
3.2 KiB
Plaintext
51 lines
3.2 KiB
Plaintext
PRIVATE PAYPHONES #2
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Hello, again. Today's lesson on private payphones details what to do
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when you get yourself connected out to the network. Typically there are
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only a few ways to get out. The best is the good `ol Ernestine-type
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operator (0). The typical rap to her is "Hello, operator, I'm testing
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this phone. Do I sound clear to you?" or "What is the area code of
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Phoenix?" to which you get the universal answer "The entire state of
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Arizona is 602!". The former is ALWAYS safe, because of the fact that
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this is a private payphone, the Ma Bell operator has no way of knowing
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that you're not the Dickhead that's SUPPOSED to be working on the phone.
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By now, you're probably wondering "So what?" or something like that.
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Heres what: The thing you are attempting to do is hang on the line
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and wait for the other party (called party) to hang up. This technique
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is similar to the one used when phreaking call diverters, what is called
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"Chain Dialling" or "2nd dialtone dialout" Now, of course some of the
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phones out there are looking for this second dialtone, and others are
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looking for loop current. The 2nd dialtone from a C.O. is almost always
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heralded by a momentary loss of loop current, and this locks out the
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keypad and mouthpiece of the phone. (You can't mess with these in this
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way). The types which are only looking for the 2nd dialtone are easy to beat.
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First, some give you a "live" keypad on the phone, which
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means that for as long as you press a key, DTMF (Touch Tone) is heard.
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Others use a "metered" keypad which pisses out short DTMF bursts for
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each key press. The object here is to lay on the 1st digit of the number you
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really want to dial while waiting for 2nd dialtone. This
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will cause the C.O. to latch up on your DTMF before the payphone's internal
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dial tone detector can latch up on the dial tone! The
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network dialtone will of course go away after the 1st digit and the rest
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of the number may be dialed more leisurely. This process can continue
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ad infinitum. The types with "metered" keypads are a bit more difficult
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to screw with, as you have to repeatedly hit that 1st digit until you
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hear the "flash" of dialtone between presses. The other type of phone
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disallows keypad use after the call is in progress, and for those, let
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me introduce you to your best friend: The Pocket Dialer! Sold for rid-
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iculously cheap prices at nearly every consumer electronics store, these
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gems allow you to screw with lots of different things when it comes to
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private payphones. Besides Operator Calls, Credit Card calls may be
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used to get out (0 plus). To do this, dial 0, a valid area code and prefix,
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and 1234 for the number. When Bell supplies the Bong tone, dial
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"6#" (really dial the "#" sign). This will evoke the message "Your Card
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Number is Invalid, please redial" and enter "6#" again. The message
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this time is "Please hang up and try again." wait for 1-10 secs (depending on
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C.O. type) and Voila! - Dial tone! This is particularly nice because the
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payphone expects a lot of keypad and DTMF activity on the line for a 0 plus
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call, and has relaxed restraints on the keypad.
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That should do it for Chain dialling, next time we'll go into other
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ways to phraud the fone.
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