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2.Explore your area for any Bell hardware, and experiment with it. Don't try something if you are not sure what you're doing, because you
wouldn't want to cause problems, would you?
95. Getting Money out of Pay Phones by The Jolly Roger
I will now share with you my experiences with pay telephones. You will discover
that it is possible to get money from a pay phone with a minimum of effort. Theory: Most pay phones use four wires for the transmission of
data and codes to the central office. Two of them are used for voice (usually red and green), one is a ground, and the last is used with the
others for the transmission of codes.
It is with this last wire that you will be working with. On the pay phone that I usually did this to, it was colored purple, but most likely will be
another color. What you will do is simply find a pay phone which has exposed wires, such
that one of them can be disconnected and connected at ease without fear of discovery. You will discover that it is usually a good idea to have
some electrical tape along with you and some tool for cutting this tape. Through trial and error, you will disconnect one wire at a time starting
with the wires different than green and red. You do want a dial tone during this operation. What you want to disconnect is the wire supplying
the codes to the telephone company so that the pay phone will not get the 'busy' or 'hang-up' command. Leave this wire disconnected when
you discover it. What will happen: Anytime that someone puts any amount of money into the pay phone, the deposit will not register with the
phone company and it will be held in the 'temporary' chamber of the pay phone. Then, (a day later or so) you just come back to the phone,
reconnect the wire, and click the hook a few times and the phone will dump it all out the chute. (What is happening is that the 'hang-up' code
that the phone was not receiving due to the wire being disconnected suddenly gets the code and
dumps its' 'temporary' storage spot.) You can make a nice amount of money this way, but remember that a repairman will stop by every few
times it is reported broken and repair it, so check it at least once a day. Enjoy and have fun.. Many phones I have done this to, and it works well
with each..
96. Computer Based PBX by The Jolly Roger
To get a better understanding of what a pbx can do, here are a few basic fundamentals. The modern pbx is a combined computer, mass
storage device, and of course a switching system that can:
1.Produce itemized, automated billing procedures, to allow the identification and management of toll calls. [hahaha]
2.Combine daytime voice grade communication circuits into wideband data channels for night time high speed data transfers.
3.Handles electronic mail [including office memos].
4.Combine voice channels into a wideband audio/visual conference circuit, with the ability to xfer and capture slides, flipcharts, pictures of any
kind.
Both the external and internal calling capacity of the pbx system must be carefully considered because many business operations run a very
high ratio of internal station to station dialing and a low capacity system will not handle the requested traffic load. A critical factor is the number
of trunks and the central office facilities that are used for outside connections. Another is the number of junctions or [links] that make up the
internal calling paths. To understand the services available on a typical computer run pbx it is necessary to introduce the subject of time
division switching. In a time division switching network all connections are made via a single common bus called (of course) a 'time-division
bus'. Every line trunk that requires a connection with another is provided with a port circuit. All port circuits have access to the time division
bus through a time division switch. [when two ports require connection, their time division switches operate at a very high frequency (16,000
times per second.) This technique, which is called 'speech sampling', allows many simultaneous connections over the same time division bus.
Each connection is assigned a time interval, the 'time slot', and the number of time slots identifies the number of simultaneous connections
among ports.] The next critical item is circuit packs. The system elements that we will be describing in future tutorials [lines/trunks/switches,
memory and control] are contained on plug in circuit packs. Each line circuit pack contains a number of lines, in example, four. But the
assignment of station numbers to actual phone line circuits is flexible. The system memory is contained in circuit packs which provide the call
processing functions. The circuit packs are held in small frames called 'carriers'. Within each carrier, the circuit packs are plugged into
positions: the 'slots'. Every circuit can be addressed by, say a five digit number which tells its location by carrier-slot-circuit.... [starting to get
the idea?] There can be three types of carriers in a modern pbx system:
"
O line carriers
"
0 trunk carriers
" O control carriers
The line carriers contain station lines. In AT&T's "dimension" model, for example, a total of 52 to 64 lines are provided. The trunk carriers contain
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