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Hackers Underworld 2: Forbidden Knowledge
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TELCOM4.TXT
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1994-07-17
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Extracting [Basic4.doc] ...
==========================
=BASIC TELECOMMUNCIATIONS=
==========================
PART IV
PREFACE:
--------
Part IV will deal with the various types of operators, office hierarchy,
& switching equipment.
OPERATORS:
----------
There are many types of operators in The Network and the more common ones
will be discussed.
TSPS Operator:
The TSPS [(Traffic Service Position System) as opposed to This Shitty Phone
Service] Operator is probably the bitch (or bastard for the phemale
liberation-ists) that most of us are use to having to deal with.
Here are her responsibilities:
1) Obtaining billing information for Calling Card or 3rd number calls.
2) Identifying called customer on person-to-person calls.
3) Obtaining acceptance of charges on collect calls.
4) Identifying calling numbers. This only happens when the calling # is not
automatically recorded by CAMA (Centralized Automatic Message Accounting) &
forwarded from the local office. This could be caused by equipment failures
(ANIF - Automatic Number Identification Failure) or if the office is not
equipped for CAMA (ONI - Operator Number Identification).
<I once had an equipment failure happen to me & the TSPS operator came on
and said, "What # are you calling FROM?" Out of curiosity, I gave her
the # to my CO, she thanked me & then I was connected to a conversion that
appeared to be between a frameman & his wife. Then it started ringing the
party I originally wanted to call & everyone phreaked out (excuse the pun).
I immediately dropped this dual line conference!>
You shouldn't mess with the TSPS operator since she KNOWS where you are
calling from. Your number will show up on a 10-digit LED read-out (ANI board)
She also knows whether or not you are at a fortress fone & she can trace
calls quite readily. Out of all the operators, she is one of the MOST
DANGEROUS.
INWARD Operator:
This operator assists your local TSPS ("O") operator in connecting calls.
She will never question a call as long as the call is within HER SERVICE AREA.
She can only be reached via other operators or by a Blue Box. From a BB, you
would dial KP+NPA+121+ST for the INWARD operator that will help you connect
any calls within that NPA only. (Blue Boxing will be discussed in a future
part of BASIC TELCOM)
DIRECTORY ASSISTANCE Operator:
This is the operator that you are connected to when you dial: 411 or NPA-
555-1212. She does not readily know where you are calling from. She does not
have access to unlisted #'s, but she does know if an unlisted # exists for a
certain listing.
There is also a directory assistance for deaf people who use Teletypewriters
If your modem can transfer BAUDOT [(45.5 baud)/ (the Apple Cat can)], then you
can call him/her up and have an interesting conversation. The # is: 800-855-
1155. They uses the standard Telex abbreviations such as GA for Go Ahead. They
tend to be nicer & will talk longer than your regular operators. Also, they
are more vulnerable into being talked out of information through the process
of "social engineering" as Cheshire Catalyst would put it.
<Unfortunately, they do not have access to much. I once bullshitted with
one of these operators and I found out that there are 2 such DA offices that
handle TTY. One is in Philadelphia and the other is in California. They have
approximately 7 operators each. Most of the TTY operators think there job is
boring (based on an official "BIOC poll"). They also feel they are under-
paid. They actually call up a regular DA # to process your request (Sorry, no
fancy computers!).>
Other operators have access to their own DA by dialing KP+NPA+131+ST (MF).
In the confusion due to the aftermath of the Bull System break-up, it seems
that it will now cost 50 cents per DA call! Exceptions seem to be Canadian
DA & the TTY DA (for the time being). Thus you might be able to avoid being
charged for DA calls by using your computer [running at 45.5 baud!] and
their 800 TOLL-FREE #! If they decide to charge from fortresses also, the
method of making DA calls from the fortress and purposely asking for an
unlisted # so you can have the operator credit you home # will no longer work!
CN/A Operators:
CN/A operators are operators that do exactly the opposite of what directory
assistance operators are for. See part II, for more info on CN/A & #'s. In
my experiences, these operators know more than the DA op's do & they are more
susceptible to "social engineering." It is possible to bullshit a CN/A
operator for the NON-PUB DA # (ie, you give them the name & they give you the
unlisted #). This is due to the fact that they assume your are a phellow
company employee. Unfortunately, the break-up has resulted in the break-up of
a few NON-PUB #'s and policy changes in CN/A.
INTERCEPT Operator:
The intercept operator is the one that you are connected to when there are
not enough recordings available to tell you that the # has been disconnected
or changed. She usually says, "What # you callin'?" with a foreign accent.
This is the lowest operator lifeform. Even though they don't know where you
are calling from, it is a waste of your time to try to verbally abuse them
since they usually understand very little English.
Incidentally, a few areas do have intelligent intercept operators.
OTHER Operators:
And then there are the: Mobile, Ship-to-Shore, Conference, Marine Verify,
"Leave Word & Call Back," Rout & Rate (KP+800+141+1212+ST - new # as result of
Bell breakup), & other special operators who have one purpose or another in
the Network.
Problems with an Operator? Ask to speak to their supervisor...or better
yet, the Group Chief (who is the highest ranking official in any office)
who is the equivalent of the Madame in a whorehouse (if you will excuse the
analogy).
By the way, some CO's that will allow you to dial a 1 or 0 as the 4th digit,
will also allow you to call special operators & other phun Telco #'s
without a blue box. This is very rare though! For example, 212-121-1111
will get you a NY Inward Operator.
==================
=OFFICE HIERARCHY=
==================
Every switching office in North America (the NPA system), is assigned an
office name & class. There are five classes of offices numbered 1 through 5.
Your CO is most likely a class 5 or end office. All Long-Distance (Toll) calls
are switched by a toll office which can be a class 4, 3, 2, or 1 office.
There is also a 4X office called an intermediate point. The 4X office is a
digital one that can have an unattended exchange attached to it (known as a
Remote Switching Unit-RSU).
The following chart will list the Office #, name, & how many of those
offices existed in North America in 1981.
Class Name Abb # Existing
----- ---------------- --- ------------
1 Regional Center RC 12
2 Sectional Center SC 67
3 Primary Center PC 230
4 Toll Center TC 1,300
4P Toll Point TP
4X Intermediate Pt IP
5 End Office EO 19,000
R RSU RSU
When connecting a call from one party to another, the switching equipment
usually tries to find the shortest route between the Class 5 end office of
the caller & the Class 5 end office of the called party. If no inter-office
trunks exist between the 2 parties, it will then move upto the next highest
office for servicing (Class 4). If the Class 4 office cannot handle the call
by sending it to another Class 4 or 5 office, it will be sent to the next
office in the hierarchy (3). The switching equipment first uses the
high-usage interoffice trunk groups, if they are busy it then goes to the
final trunk groups on the next highest level. If the call cannot be connected
then, you will probably get a re-order [120 IPM (Interruptions Per Minute)
busy signal] signal. At this time, the guys at Netw