43 lines
2.4 KiB
Plaintext
43 lines
2.4 KiB
Plaintext
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PART XVI. "THE ROAMING SCAM"
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Some people who are playing with phones that have been originally
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registered but have been turned off for non-payment of bills have used the
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"Roaming Scam" to place free calls. NOTE: The cellular carriers will still
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have records of these calls, and will prosecute those they eventually catch
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up to (yeah,right). However, industry standards have shown that they pursue
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less than one percent of the fraudulent calls placed. It is far more
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economical for them to build software and hardware traps to prevent unbilled
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calls from being placed rather than attempt to collect on the other end
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which involves greater amounts of personnel and manpower with smaller actual
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collections.
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People have performed the roaming scam by taking their phones into
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areas where the SIDH numbers are different from the ones currently programmed
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into their phones. Refer to the SIDH listing in this file for the codes for
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particular cities. By reprogramming the NAM and inserting a fake SIDH, the
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cellular carrier will often accept the phone call, but on occassion the user
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will get a message that the phone must have a local code in order to access
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the system. As cellular carriers grow larger in size, this message is less
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frequently heard. At this point, the cellular carrier instructs the user to
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contact them. I don't think so.
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The cellular service has the best chance of of catching a spoofer who
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either calls a friend continually at home or by developing traceable trends
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such as calling the same number from within the same cell at the same time
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every day. Or doing something stupid like ordering a Pizza.
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"But I want to hook up the phone to an acoustic coupler, d00d, and
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call all the k-rad out-state-boards for the latest
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PyRut WaR3z!4@$$!$@!@" <-lamer.
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Well, one of the properties of cellular phone systems is that the
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transmitter freqs. may be changed or "hopped" in the constant effort to
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allocate freqs. Because of freq. hopping it is very difficult to
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triangulate a cellular phone using standard directional finding methods
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(trace you, d00d). Further, it is known that a directional antenna randomly
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aimed at cellsite repeaters will confuse directional finding equipment
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being used by them that is synced to their freq. hopping scheme.
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*****************************************************************************
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