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GETTING THE BEST OUT OF MOBILE FONE REPEATERS
This file may be reproduced in any way as long as none of the contents is
altered or deleted.
Written By: Bellcon
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(This file was originally written for the U.T.U. Journal, but that is now
defunct so here it is...) In this world of highly overpaid businessmen and
women, these people feel that they are so important to the extent that they
need to be able to be reached 24 hours a day, no matter where they are. Not
all of them can afford a mobile fone, and two way transcievers are quite
expensive in themselves. A simple answer is a pager. It is small, fairly
cheap, and anyone can reach you via a telephone line. With your assigned pager
that you recieve from the company of your choice, you get a special phone
number for people to call you at. If they need to reach you, they dial up your
personal pager number and leave a 15 second message. This phone number is of
course different from your home number. Now why is this called mobile, or
cellular paging? In order to send your message to a person, it must first be
processed through their equipment, and delivered over a certain frequency. No
matter how many people are handled by different phone dial- ups, they are all
processed through the same frequency, and then sent out individually using
tones. A pager will recognize its encoded tones and then receive the message
that needs to be sent. (There is also a monitor function to listen to
everyone's messages.) Due to all this processing, a message is sometimes
delayed 3-15 seconds before it is actually recieved by the customer. The most
common location of cellular pagers, and cellular telephone systems for that
matter, is between 151-153 MHz. In our locality 152.025 and 152.78 MHz seem to
be the most widely used. Scanning for these is easy, because you will hear an
obnoxious long beep usually followed by a worried wife telling her hubby not to
forget the groceries. This may be all fine to hear about, but how can you use
it? Easily, we just cut out the end effect and catch it half way through the
process. Once you find a dial-up, you have them where you want them because if
you find one single number, the sourounding 300 numbers do the same thing. You
can go about finding a dial-up any way you wish, but the easiest is just to
wait and listen until someone leaves a message telling someone to call them.
Call the number immediately and impersonate the official of your choice asking
them to render the last number dialed for one reason or another. Give that
number a call and leave a message to check it out. You should hear your voice
within a few seconds. Suppose you were listening to 152.025 MHz and someone
said to call him right away at a certain number. You call that number and get
the last number dialed, call that, and voila! You now have your very own call
waiting feature located at 152.025 Mhz. If you are on the phone and have a
scanner, set one frequency to a pager service that you have figured out. Give
your friends an access number for when your line is busy and they can reach you
easily. Here is an example of a working access port and frequency:
(518)-370-9146 Rings, then you get a beep. Enter a 15 second [maximum]
message. You hear a busy signal when your 15 seconds is up. Tune in to 152.24
MHz. Wait a few seconds and then you will hear that paticular person's tones
followed by your own or someone else's message. I will not directly disclose a
friend's service dial-up, but it exists at 152.78 MHz and is in the 449 prefix.
Pursue it further if you want. One final note, technically we are not breaking
the law by doing this. There are no access codes being used to infiltrate any
security systems, no breaking and entering or anything like?that. Just calling
a number and then listening to your scanner. The only possible thing I could
see trouble in would be to violate Section 605 of the Communications Act of
1934, which says you are not allowed to reveal intercepted conversations to
anyone else. Of course now we are back to the beginning because this is not
really what we would call a conversation. Enjoy the system, and call NYNEX at
518-458-7732 for your personal northeastern region mobile-fone maps.
-------Bellcon-------?
(c) October 5, 1986
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The Slipped Disk BBS 518-377-6487