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- | White and Silver Boxes | SILVERBX.TXT | from Elric of Imrryr |
- | Lunatic Laboratories Unltd. | | Official Document |
- \===================================^==============^==========================/
-
- WHITE BOX PLANS
- This article will tell you how to take a perfectly normal touch tone keypad
- and convert it into a portable unit, allowing remote phreaking.
-
- First of all, the tones made by a touchtone telephone are not single tones,
- they are a combination of two different tones, making "DTMF" (Dual Tone Multi-
- Frequency). The normal tone telephone dials 12 different signals, but is capa-
- ble of dialling 16 different signals (see silver boxes.)
-
- The power required by a keypad is about 25 volts, but they will work with as
- little as 15, thereby allowing the use of two 9-volt radio batteries. As you
- may have guessed, they are designed to operate with a telephone type speaker
- (and phone line), and not the standard 8-ohm speaker which needs to be used for
- adequate volume. To accomplish this, we use a matching transformer, one of
- those miniature ones available from Radio Shack. Enough of the theory, now for
- the circuit.
-
- You will need:
- A touchtone keypad
- A miniature 1000 to 8 ohm transformer (Radio Shack #273-1380)
- A standard 8-ohm speaker
- Two 9-volt batteries
- Two 9-volt battery clips
- A case to put it all in (optional)
-
- A few construction notes- I suggest that you solder and tape all connections.
- It is also important to read this entire file before attempting to construct
- this.
-
- First, connect the red wire of the transformer to either terminal on the speak-
- er. Now connect the white wire from the transformer to the other terminal on
- the speaker. Next, connect the red (positive) wire of one battery clip to the
- black wire of the other battery clip. Now connect the remaining red wire on
- the second battery clip to the green wire from the touchtone pad. Connect the
- blue wire from the touchtone pad to the orange-and-black striped wire from the
- touchtone pad. To these two wires, now connect the remaining black lead from
- the first battery clip. You now have finished the power connection to the
- keypad.
- Connect the black wire from the keypad to the blue wire on the transformer.
- Next connect the red-and-green striped wire from the keypad to the green wire
- on the transformer. The black wire on the transformer should be unconnected,
- along with quite a few other wires from the keypad. The connection of the
- keypad is now complete.
- All you have to do is connect two nine volt batteries to the battery clips,
- and you'll be ready to go. I suggest that you stick the mess in a case for
- easy portability.
- Note that the silver box modification can be made to this unit, allowing com-
- plete remote phreaking (this unit is called a grey box). When none of the
- buttons are pressed, this unit uses no power, eliminating the need of a power
- switch, and extending the life of the batteries.
-
- Dual-Tone Multi-Frequency (Touch-Tone) Frequencies
- Key Freq. #1 Freq. #2 [] Key Freq. #1 Freq. #2
- --- -------- -------- [] --- -------- --------
- 1 697 1209 [] 4 770 1209
- 2 697 1336 [] 5 770 1336
- 3 697 1477 [] 6 770 1477
- A 697 1633 [] B 770 1633
-
- 7 852 1209 [] * 941 1209
- 8 852 1336 [] 0 941 1336
- 9 852 1477 [] # 941 1477
- C 852 1633 [] D 941 1633
- Note: A, B, C, and D are the special frequencies generated by silver boxes.
-
- HOW TO TURN YOUR TOUCH-TONE FONE INTO A SILVER BOX
-
- Tools and Materials: Soldering iron, some solder, some 22 Ga. wire, an SPDT
- switch, and a screwdriver.
-
- 1> Unscrew your phone (it must be a touch tone, desk type).
- 2> Remove the mounted pad and take the clear plastic cover from the bottom.
- 3> Hold the pad with the numbers *, 0, and # facing you, and turn it upside
- down so you can see the yellow PC board. You should see 2 round black
- doughnuts.
- 4> Position the board so the solder points for the left doughnut face you.
- 5> Count over 4 points from the left and attach a (GREEN) wire to that
- point.
- 6> Between you and the doughnuts, there should be 2 long yellow capacitors.
- To the right of these, and on the edge of the board there should be 3 gold con-
- tacts. We will use the one on the left.
- 7> The contact originally is spot welded, so snip it open.
- 8> To the one nearest you, attach a (RED) wire, to the other one, a (YEL-
- LOW) wire.
- 9> Run the wires out of the phone, and solder the switch.
- 10> The orientation should be (RED) to center. The switch will now alter-
- nate between normal and 1633Hz fourth column tones.
-
- From BIOC Agent 003's Course in Basic Telecommunications: Part V
-
- Dual Tone Multi Frequency (DTMF) is a modern day improvement on pulse dial-
- ing in several ways. First of all, it is more convenient for the user since it
- is faster and can be used for signalling after the call is completed (ie SCC's,
- computers, etc.). Also, it is more up to par with modern day switching equip-
- ment (such as ESS) since pulse dialing was designed actually to move relays by
- the number of digits dialed (in SXS offices).
- Each key on a DTMF keypad produces 2 frequencies simultaneously (one from
- the high group and another from the low group).
-
- -------------------------------------------------
- LOW GROUP | Q | ABC | DEF | |
- 697 Hz -| 1 | 2 | 3 | A |
- |-----------|-----------|-----------|-----------|
- | GHI | JKL | MNO | |
- 770 Hz -| 4 | 5 | 6 | B |
- |-----------|-----------|-----------|-----------|
- | PRS | TUV | WXY | |
- { 852 Hz -| 7 | 8 | 9 | C |
- |-----------|-----------|-----------|-----------|
- | | OPERATOR | | |
- 941 Hz -| * | 0 | # | D |
- |-----------|-----------|-----------|-----------|
- HIGH GROUP 1209 Hz 1336 Hz 1477 Hz 1633 Hz
-
- A portable NORMAL DTMF keypad is known as a white box; a touch-tone fone
- converted for use of 1633 Hz is known as a silver box; a portable FULL touch-
- tone keypad is known as a grey box.
- The fourth column (1633 Hz) is not normally found on regular fones but it
- does have several special uses. For one, it is used to designate the priority
- of calls on Autovon, the military fone network. These keys are called: Flash,
- Immediate, Priority, and Routine (with variations) instead of ABCD. Secondly,
- these keys are used for testing purposes by the Telco. In some areas you can
- find loops as well as other neat tests (see Part II) on the 555-1212 Directory
- Assistance exchange. For this, you would call up a DA in certain areas [that
- have an Automatic Call Distributor (ACD)] and hold down the "D" key which
- should blow the operator off. You will then hear a pulsing dial tone which in-
- dicates that you are in the ACD internal testing mode. You can get on one side
- of a loop by dialing a 6. The other side is 7. Some phreaks claim that if the
- person on side 6 hangs up, the equipment will screw up and start directing
- directory assistance calls to the other side of the loop. Another alleged test
- is called REMOB which allows you to tap into lines by entering a special code
- followed by the 7 digit number you want to monitor. Then there is the possi-
- bility of mass conferencing.
- ACD's are becoming rare, though. You will probably have to make several
- NPA-555-1212 calls before you find one.
- You can modify regular fones quite readily so that they have a switch to
- change between the 3rd and 4th columns. This is called a silver box (aka grey
- box) and plans can be found in TAP as well as on many BBS's.
-
- Word processed and nroff'ed by Tharrys Alaric Ridenow
-
-
-
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- From Lunatic Labs UnLtd. 415-278-7421
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