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- Path: sparky!uunet!zaphod.mps.ohio-state.edu!news.acns.nwu.edu!telecom-request
- Date: Wed, 12 Aug 1992 09:56:16 -0600
- From: rickie@trickie.uucp (Richard Nash)
- Newsgroups: comp.dcom.telecom
- Subject: Re: Solve Three Problems (was Telecom Fraud)
- Message-ID: <telecom12.624.8@eecs.nwu.edu>
- Organization: TELECOM Digest
- Sender: Telecom@eecs.nwu.edu
- Approved: Telecom@eecs.nwu.edu
- X-Submissions-To: telecom@eecs.nwu.edu
- X-Administrivia-To: telecom-request@eecs.nwu.edu
- X-Telecom-Digest: Volume 12, Issue 624, Message 8 of 12
- Lines: 28
-
- > In article <telecom12.606.2@eecs.nwu.edu> phaedrus@cs.washington.edu
- > (Mark Phaedrus) writes:
-
- > Secondly, I had a question about how local phone company cards are
- > supposed to work around the country. I have a Pacific Bell calling
- > card, and while traveling last week I couldn't find a phone that would
- > accept the card by simply using the mag stripe reader. The phones,
- > owned by AT&T and Illinois Bell, would tell me that the card was not
- > valid, but worked fine if I manually punched in the digits. Am I wrong
- > in assuming that the stripe reader should have worked? It seemed to
- > defeat the whole purpose of the only possibly secure way of using the
- > card.
-
- The mag stripe reader uses a different method of validating the card
- number than the manual punch-in method. In one system, the mag-stripe
- phone will automatically place a call to a calling card database
- validation centre from where your call is then completed (if card
- validates ok). As this system is telco dependant, surprisingly, it
- may not have access to the almost completely North-American wide, SS7
- accessed, telco interworking Calling Card Service! Therefore, this may
- explain why your card did not work. The mag stripe system does not
- know about your card!
-
-
- Richard Nash Edmonton, Alberta Canada T6K 0E8
- UUCP: trickie!rickie@ersys.edmonton.ab.ca
-
-