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