text
stringlengths
0
1.99k
15/70: From what I've heard
Name: The Scanner 20
Date: 8:30 am Fri May 01, 1987
That there isnt any way to detect a Pen register. No humm, buzz, or any thing
else. But hey, what do I know?
Dont answer that.
Anyway, 2 more questions,
Im sure momma bell knows all about red box tones and stuff like that. But,
what about those independent co's that make pay telephones and just kinda hook
them up to normal lines in stores and stuff. Wouldnt they be easy to box off
of or do they work in a different way altogether? Well, that was only one but
an answer is appreciated.
_-The Scanner
16/70: 'Round here...
Name: Taran King 1
Date: 2:41 pm Fri May 01, 1987
In this region, you can't just play the tones into the mouthpiece and get cred
(credit) for whatever you've played into the phone...you CAN, though, dial a
long distance number, it will then say, "Please deposit $x.xx". You put in
(play the tones for) the money and it says something like, "Thank you for
using AT&T." Ta da
-TK
17/70: Muxing, Etc
Name: Doom Prophet 21
Date: 4:56 pm Fri May 01, 1987
Lucifer, I think what you mean about the bandwidths changing in Multiplexing,
you are referring to voice frequency bandwidths. Multiplexing is just a method
of sending more than one converstation down the same transmission path. In
analog and older switches the method is called Frequency Division
Multiplexing, or FDM, when the signals are seperated on basis of frequency, as
opposed to newer switches which do it on a Time division basis (TDM). There's
also something called Space DM but I don't think it has a whole lot to do with
telephones (maybe stuff like digital Xmission). But anyway, a normal VF voice
bandwidth goes from 300 to 3000 Hz which is SF in band, although the VF
channel goes from 0 to 4000 Hz. Anything above 3000 is out of band signalling
(like 3700 Hz). CCIS uses a seperate nettwork composed of STP's and varioius
links and channels for independent signalling methods.
About the red boxing, the circuits that keep track of the coins that have been
entered are called Coin Detection & Announcement circuits (if the fortress is
in an ACTS serving area), which are a part of the Station Signalling
Announcement Subsystem which work out of local offices and in conjunction with
TSPS (not TOPS as far as I have seenn, a flash of the switchook anytime
during the initial charge announcements and an operator is connected. Playing
the tones to a live operator wouldn't be a good idea as they can obviously
tell the difference.
Something else, there was a little discussion about AMA and all (isn't there
everywhere?) a while back. The way a local office (LAMA) would keep track of
the billing data is to use a few AMA circuits (there are always two, AMA0 and
AMA1 but can be more for big offices) that reverse positions (from an active
to standby mode at midnight when the datta in the buffer is recorded onto the
actual tapes). So the AMARC computers can format the data to where it is
recognnized by the RAO, the tapes have to be specially customized for that
particular officere. A header label on the tape (put on at the beginning of
each new tape entry (12)) tells the originating NPA, the office number, date
and tape transport dates. A tape trailer is added on at the end of the tape
entry for that day, which has the info about how many total calls were AMA
recorded. The tape mark is some digit (?) that tells the RAO that the useful
info (that they need to look at) is ended. The billing data itself is in a
binary coded decimal form (0's and 1's) along with check and dummy codes. A
noncheck dummy code fills the spaces on the tape to signigy that there wasn't
a problem, but the space is supposed tobe there. A check dummy code is because
the info wasn't received or sent from the Peripheral Adress bus or from the
originating register into the charge buffer. If you ever come across AMA
records (like in the call store section of SCCS) it won't look like anything
that can determine billing (AMARC and RAO do that). They aren't too hard to
read though, just takes a while.
Doom
Read:(1-70,^17),T,R,Q,P,A,? :
18/70: Correction
Name: Doom Prophet 21
Date: 5:52 pm Fri May 01, 1987
Damn, what I got that I thought was some type of AMA records are not AMA
records (I think), so that means that I haven't been reading AMA records.
Shit, that's something that I want to do. Have to get some.