The Midnight Computer Wiring Society presents................


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2/20/91                

                   COCOTS: What the hell are they anyway?



                                 by



                      ..oooOO Count Zero OOooo..

                             -=*:MCWS:*=-

               BONUS!->  plans for the COMBO-BOX 

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   So...you're walking down the street and you see a payphone...gotta make an 

important call, so you dig into your pocket to get a dime...picking up the 

handset, you suddenly notice that the payphone wants a QUARTER for a local 

call!...what the hell?....and WHERE did this synthesized voice come from?...



  Let's make this phile short and to the point..a COCOT is an acronym for

Customer Owned Coin Operated Telefone...in other words, a COCOT is a fone

OWNED or RENTED by a PAYING CUSTOMER (most likely, a hotel or donut shop)..a

COCOT is NOT a normal payfone...the Telco doesn't own it, and the actual fone

line is usually a normal customer loop (unlike payfones, where the fone line 

is a "special" payfone loop, allowing the use of "coin tones" to indicate

 money dropped in..more on this later)... SO!...A COCOT may LOOK and SMELL like

a telco payphone, but it is NOT....



* Why do COCOTs exist?



  Simple....$$$$$$$!...a customer owned payfone is money in the bank!..you pay

 MORE for local calls...and long distance is typically handled by sleazy

carriers that offer poor/EXPENSIVE service..the owner/renter of the COCOT opens

 the coinbox and keeps the money him/herself!...Also, a particularly SLEAZY

 quality of a COCOT is the fact that it DOES NOT RECIEVE INCOMING CALLS..this,

 of course, is because of $$...if people are calling IN to a COCOT, the COCOT 

 is not making money...and businesses always want to make as much $$ as 

 possible...even if it hurts the consumer...(think about it..it REALLY sucks

 calling someone at home from a COCOT, then not be able to have him/her call

 you back to save $$..."Guess I'll have to keep feeding the COCOT quarters!")



* Where is a good place to look for COCOTs?

 

  Outside Dunkin Donut shops, restaurants, clubs, bars, and outside/inside 

 hotels...."convenient" locations





*  How do I figure out if I have found a COCOT?



  Simple..a COCOT will have NO TELCO LOGOS on it....no New England Telefone

symbols....it may look just like a Telco fone...chrome, with blue stickers and

all that...ALSO..a COCOT typically charges MORE for a local call than a regular

Telco payfone (in Massachusetts, local calls are a dime, in places like NYC,

they are 25 cents..)....a COCOT will most often have a synthesized voice that

asks you to "please deposit 25 cents" or whatever...ALSO...some FaNcY COCOTS

will not look like payfones at all...some in hotels have weird LCD displays

and look totally different..but the ALWAYS charge you more than a normal 

payphone..



*  OK, I found this weird payphone in Boston that wants a quarter, and this

 synthesized voice is harassing me...when does the phun begin?



  Soon..first of all, you must understand that the COCOT is a MIMIC...

essentially, it wants you to THINK that it is just a plain ol' payfone...pick

up the handset..hear that dialtone?...HAH!...that dialtone is FAKE...

synthesized by the innards of the COCOT....you are at the mercy of the COCOT..

REMEMBER...a COCOT runs off of a normal customer loop..SO...unlike a Telco

payfone where you MUST deposit money to generate coin tones that are read by

the CO, the SECURITY of a COCOT depends SOLELY on the COCOT fone itself...its

as if you took your own fone and put a sign on it saying "Please put 10 cents

in this jar for every call you make."....COCOTS are not naiive...they won't let

you NEAR the unrestricted dialtone until you fork over the cash-ola..heh heh..

or so they THINK!



  See, the Achilles heel of the COCOT is the FACT that ALL PAYFONES MUST LET

YOU MAKE 1-800 CALLS FOR FREE!...it's not just a fact, it's the LAW...so, now

pick up the handset again and place a 1-800 call....any 1-800 number will do.

When they answer at the other end, just sit there....do nothing...ignore them.

wait for them to hang up the fone....here's an example..



<DIAL 1-800-LOAN-YES>



<Ring, Ring>.....<click> "Hello, you wanna buy some money? Hello? HELLO?!"



<CLICK>



<You will now hear some static and probably a strange "waffling" noise, like

  chh,chh,chh,chh,chh>



<CLICK>......DIALTONE!



 NOW!..what have we got here?...a DIALTONE?...yes, you guessed it, the dialtone

you now hear is the UNRESTRICED dialtone of the COCOT's customer loop...



* So what?..So I got an "unrestricted dialtone"...big deal?



  Meathead!...with an UNRESTRICTED dialtone, all you need to do is place a call

via DTMF tones (the tones a touch-tone keypad generates)...now, try dialing a

number with the COCOTs keypad...WHOA!..waitasec, no sound!..heh heh..this is a

typical lame attempt at protection by the COCOT..just WHIP out your Radio Shack

pocket tone dialer, and try calling a number...ANY number...place it just as

if you were calling from a home phone...call a 1-900 sex line...call Guam...you

are FREE..and the COCOTs customer loop is being billed!





***NOTE:..some COCOTS are more sophisticated at protecting themselves..some

will RESET when they hear the dialtone...to get around this, make a loud

hissing sound with your mouth into the mouthpiece after the 1-800 number hangs

up...also, get your tone dialer ready near the mouthpiece..when u hear the

dialtone, quickly dial the first digit of your number to call...if you hiss

loudly enough, you MAY be able to mask the sound of the dialtone and prevent

the COCOT from resetting...and once you dial the first digit of the number

you are calling, the dialtone will disappear (naturally)...ok, you can stop

hissing like an idiot now..finish dialing your PHREE fone call..

  Also, some COCOTs actually disable the handset after a call hangs up

(in other words, you can't send DTMF tones thru the mouthpiece)....oh well, 

better luck next time..



HOWEVER...MOST of the COCOTs I have run across ONLY disable the DTMF keypad..

so all you need is a pocket dialer to circumvent this!



OTHER THINGS TO KNOW:...Sure, you can't call a COCOT, but it DOES have a number

..to find out the COCOT's number, call 1-800-933-3258..this automated ANI 

service will tell you the number you're dialing from...now, try calling the

COCOT from another fone..you will hear one of 2 things:



                 1) synthesized voice "Thank you"...CLICK..<hang up>

                 2) weird carrier



A COCOT's number is ONLY used by the company that BUILT the COCOT..by calling

up a COCOT, a tech. can monitor its functioning, etc...in case (1), you must

enter a 3 or 4 digit password and then you'll get into a voice menu driven

program that'll let you do "maintenance" stuff with the COCOT...in case (2),

you are hooked to the COCOT's 300 bps modem (YES, a MODEM in a PAYFONE)..

likewise, if you can figure out the communication settings, you'll be into the

COCOT's maintenance routines.....



Personally, I haven't had much luck (or patience) with calling up and hacking

COCOT maintenance functions..I just like making free fone calls from 'em! 





COCOT ETIQUETTE:

 Now, remember, you are making free fone calls....but SOMEONE has to pay for

'em...and that is the OWNER...the COCOT's customer loop is billed the cost of

the calls, and if the OWNER sees a big difference in the profits made on the

COCOT (profit=coins from COCOT - bill from Telco for customer loop)..they'll

know SOMETHING is up...so..moral is DON'T ABUSE THEM!..don't call a 1-900

number and stay on the line for 12 hours!....if a COCOT is abused SEVERLY, an

owner will eventually LOSE money on the damn thing!...and that means..BYE BYE

COCOT...also, remember that a RECORD of ALL LONG DISTANCE calls is made to the

COCOT's customer loop..and COCOT companies will sometimes investigate "billing

discrepencies"....so don't call anyone you personally know unless you are

sure they are "cool"..



<RING RING> "Hello?"

           

       "Hello...this is Cointel, Inc....we'd like to ask you a few

        questions about a call you received from Boston on 2/12/91.

        Could you tell us the name and address of the person who

        placed the call?"



    COOL dude -> "What?...I don't remember...go to hell! <SLAM>"

    MEATHEAD -> "Uh, sure, his name is John Smith...you want his address too?"



Get the picture? Good...



COCOTs are a great resource if we use them wisely...like our environment, we

gotta be careful not to PLUNDER them....make a few long distance calls...and

then leave that particular COCOT alone for awhile...chances are, your bills 

will be "absorbed" by the profit margin of the owner..and probably ignored..

but the smaller the owner's profit margin gets, the more likely suspicions will

be aroused...'nuff said!



I have found COCOTs EVERYWHERE...some of my personal favorites are on Route 1

North of Boston...check out the Dunkin Donut shops and the Burger King..also,

in front of the Rat in Kenmore...look around..they are lurking everywhere..

(BUT..COCOT technology is relatively new..don't expect them EVERYWHERE..I know

many towns that have NONE...check out big cities....)  Here are some numbers of

COCOTs:

                 Kenmore Square, the Rat

                     617/247-8195

                     617/247-7913

                     617/247-8208

                     617/247-9437



  Random ones: 617/720-4430   617/233-9872



Here are some companies that deal with COCOTs...try out your social 

engineering skill on them:



              Cointel, Inc.               Int'l Telecharge, Inc.

            130 Broadway St.               P.O. Box 50579

            Somerville, MA                 Dallas, TX

                       02145            1800/999-5152           

             1800/322-7741   





As for a Tone Dialer, don't leave home without one!...a true phreak always has

a DTMF tone dialer at hand..along with a red box!....My personal favorite is

the COMBO-BOX (red box plus DTMF)..take a Radio Shack 33-memory Pocket Dialer..

open up the back...remove the little 3.579 MHz crystal (looks like a metal 

cylinder..unsolder it)...solder on a couple of thin, insulated wires where the

crystal was attached...thread the wires thru one of the "vents" in the back of

the tone dialer....get ahold of a 6.5536 MHz crystal (available thru Fry's

Electronics, 89 cents a piece, phone number 415/770-3763)...go out and get some

quick drying epoxy and a Radio Shack mini Toggle Switch, DPDT, cat. no 275-626



Close the tone dialer, with the two wires sticking out one of the back vents..

screw it up tight....now, attact the crystals and wires to the switch like this

with solder:

                              I^^^^^I

                              I      xx  <3.579 crystal>small one 

                              I     I                              

 toggle switch    ->   oooooo X      xxxxs <two wires>  

                              I     I

                              I      xx  <6.5536 crystal>big one

                              I     I

                               ^^^^^^



Each "xx" prong in the diagram is actually TWO prongs....hook up the two leads

from the crystals to separate prongs (same with the wires).



Now, epoxy this gizmo to the side of the tone dialer..use ALOT of epoxy, as you

must make the switch/crystals essentially EMBEDDED in epoxy resin. like this:







front view ->       ----------------------

                    I                    I T <-toggle switch

                    I  oo    oo     oo   I---  

                    I                    I  |     

                    I                    I---

                    I   1    2     3     I B s <-two crystals(b=big,s=small)

                    I                    I  |     in epoxy "blob"

                    I   4    5     6     I _  

                    I                    I    

                    I   7    8     9     I  ^two wires running to back of unit

                    I                    I

                    I   *    0     #     I

                    I                    I                    

                    ----------------------



                    ----------------------

back view ->        I                    I

                 T  I  o      ----   o-----------------------vent (1 of 4)

                --- I    /          \    I

               |    I   |         -----------------speaker           

                --- I   |            |   I 

                s B I   |            |   I 

 2 wires    ->   \-----o      ----   o   I

 running into       I                    I

 vent               I                    I

                    I                    I

                    I                    I

                    I                    I                    

                    ----------------------





Make sure the epoxy is really gobbed on there..you want to be certaint the 

switch and crystals are firmly attached and secure in a matrix of epoxy (it

doesn't conduct electricity, so don't worry about shorting out the connections

to the toggle switch)...just don't gum up the action of the switch!



Basically, you've altered the device so you can select between 2 crystals to

generate the timing for the microprocessor in the tone dialer...



Now...turn on the tone dialer..NOW, you can easily switch between the 2 crystal

types...the small crystal will generate ordinary DTMF tones...but, by 

simply flicking the switch, you generate HIGHER tones...now, using the

memory function of the tone dialer, save 5 "*" in the P1 location...now dial

the P1 location using the BIG crystal...hmmm, sure sounds like the tones for

a QUARTER, doesn't it!  8-)



Carry this around with you always...will come in handy with both Telco 

payfones AND COCOTs!...no Phreak should be without one!  



Anyway, that about wraps it up for me.....references for this article include 

Noah Clayton's EXCELLENT article on COCOTs in 2600 Magazine, Autumn 1990..

also, The Plague's article on Tone Dialer conversion to Red Box, 2600

Magazine, Summer 1990 (Which inspired me to create the COMBO-BOX (red box PLUS

DTMF dialer)...I strongly urge people to subscribe to 2600 Magazine...call

their office line for more details ->516/751-2600...

Remember..you can READ all you want, but if you don't get your ASS out 

there and try stuff out for yourself, you are nothing but a POSER!



'Nuff said...oh, also, I heard that SOME COCOTs have handsets in them

that can be accessed..in other words, you call the COCOT and if you hit 

"0" or something else, the earpiece of the handset is activated and you can

listen in on what's goin on around the COCOT...I dunno...never worked for me,

but try these 2 "suspected" numbers...212/268-7538, -6129...try hitting "0" and

listen for any sounds...I could be wrong, I could be right..I could be black,

I could be white....



That's all folks...remember, the purpose of this phile is to ENLIGHTEN, and I

in no way condone or encourage illegal activities...so don't blame me for

ANY MESS you get into...this phile offered strictly as INFORMATIONAL ONLY!  I

am in no way responsible for your ass!...

Also, I am not into wanton destruction, vandalism, or fraud..seek the truth, 

and leave nothing but footsteps...



Remember...SHARE THE WEALTH...INFORMATION IS POWER...SHARE IT!



And drink massive amounts of Jolt cola...trust me, it's good for you.





Special Greetings to Magic Man, Darby, JT, Muppet, Madmike, Falcon, George Bush

 FBI Agent, Net Runner, Canine, Plutus, Midnite Mage, YellowJacket, Old Pink,

 the Knight, Spiritwalker, Yellow Jacket, and anyone else I forgot..



Keep the faith, and never stop searching for new frontiers....



                    ..................................

                       

                       ..oooOO Count Zero OOooo..                   

                              -=*:MCWS:*=-

                    ..................................



