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    1 N7ERN~
    
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    ~ Y ~ A R ~ Y
    
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    'Blue Box' Is r inkea' fo Phone Call Frau~
    
                                  By ROY It. SlLVER
                                  aPet'll - ~ - y~ ~"
                                MINEOI^, L. 1., May 5
    
    Armd with a courr order,
    detectives of *~e proiecu-
    tor's rackete bilresu and tale~
    phtnd compuly '®sonnel
    se&rched tho home st 36
    Henhawk Rosd last nlght.
    they sald Ihcy fnund a smell
    box measuring 5 ~y 6 by 3".
    Inches attached to a tcle-
    Dhone tn the youth's rsom.
    The prosecutor did not say
    ~vhe had made thc bo~ The
    telephone compong said snn.
    ilar device. had been used
    elcewhere tn tbe country.3~e-
    f~
    
    The telephone c~npany
    came scspic~ous when an~
    put® cards showi" the
    amoun~t o! time uscd f® in-
    fo~mation calls ~ted that
    sonÄcalls were talcing much
    more than the u~ual one to
    
    ~ree ~. _
    1
    2
    3
    4
    5
    6
    7
    8
    g
    o
    S tart
    Stop
    
    700
    700
    900
    700
    900
    1100
    700
    gOO
    1100
    1300
    1100
    1 500
    Disconnect
    
    ÄFRI:~`
    ~Ea
    
    ú l
    
    T?` AUX.

    





     S~*~R
     SP"
     /
    
      ~y A1 Bell
    
               After inter~ewing engineering students around the country,
           I found that the blue box makes tones that are similar to, but
            not exactly like a pushbutton p},one. Since operators use the
           same device for putt:Lng operator-assistance calls throngh, the
          tones were published in the Bell System Technical Journal, 1960
           Large lihraries and engineering schools hsve the Journal. Like
            a pushbutton phone, two frequencies make up each tone. One of
          the "boxers" who was n`: `- caught said, "Those people '!ho were
         caugh.t probably called information, 'bleeped' out- the operator,
          and redirected the call ~.nth t'ne box, by pressin~ the buttons
         of the desired nun~ber. T haven ~ t been cau~;ht ~"cause I call fro
         a pay phone, and I ne~rer stay on ~nore than 1~ ~inutes. Most im-
          prtantl~, I never use in forr;~ation. I use the Sberaton Hotels
         '.!Jatts Line n~,mber, 800~325-3535. R~ght bce fore the~r ans,.'rer, I
                                                       bleep thern out ".
             Rut ~he blue bo~ isn 't necessary. A cassette tape rr.achine
         ~nll r.or,~ fi ne. Two ~i=~,al generators are neecled to record the
               pa~r of -ones for each diœit, star', and stop. llecord esch
         900digi t, ~ you `~11 have ~ r~as ter tape frorn whicl1 to mal;e ac tual
         1100phone nu~.,1,er sequences on otl~er machines. One siœna1 ~enerator
         1100~nll work ~ f ~,~ou !na,~e the master on ~ stereo tape, and play the
         1300two channel~ back to~;ether as you record them on the other tape
         1300          For this to work, several rules ??USt be followed:
         1300         -K`?cord direct, without microphones, as in Fig. 1 .
         1~00 -Record as loud as possible `=thout distort'on. ''Yatch your
         1500                          record ~neter ~hen ri~aXing tspes.
         1500         -Only use fresh batteries, and don' t wear them out.
         1500-A better speaker for playing the tones into phones is a stand-
         1700ard telephone eargiece . Where you steal one is your problem,
         1700( its so easy) but plug it into the ext. speal~er jack as in Fig.
    
    2600t )( -Each tone lasts one second, with one second betY'een esch tone.
    
          However, wait 3 seconds after "bleeping" disconnect tone. Ther.
                       play KP, area code, number, and ST, in that order.
           -Hold your littie makeshift speaker close to mouthp~ ece withou
                                            moving while playing tone s .
            -Your electronics friends and young engineers cen help yon get
     1'   a signal generator or two to use, and they t 11 help you record
    
            ~ ^~,                 the tones properly.
    
    F\Gr. 2 lN~lltJ~q~c -The two frequencies of esch tone must last the entire one sec-
    ~> ond, and they must start and stop si~ultaneoualy.
    
    , _~
    
    ~ .
    
    ~ o) .
    
    7 o~c~ 11~trs r~V'.r~ .
    
    CAIJTION: YIPL does not advocate malring free calls. However, YIP]
    do~ n't believe in paying for call`;, either. If caught, you may
    he char"ed witl, fraud and theft of services. So consider care-
    fally ~l~ether you need to call lon~; di..tance, and ~ f. you do"
    `:~nside, ,..hother or ~ot ~ron he] ieve in free speech.
    
    I >!
    
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