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- Path: sparky!uunet!zaphod.mps.ohio-state.edu!news.acns.nwu.edu!telecom-request
- Date: Fri, 25 Dec 1992 21:04:07 GMT
- From: luckey@rtfm.mlb.fl.us (Jon Luckey)
- Newsgroups: comp.dcom.telecom
- Subject: Re: AOS Payphones @#$%%%$#
- Message-ID: <telecom12.918.2@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 918, Message 2 of 9
- Lines: 51
-
- castaldi@heroes.glassboro.edu writes:
-
- > Boy, I hate those telephones that are picked to Telesphere, 0-plus and
- > the like.
-
- > Now that they found ways to block 10-ATT-0, AT&T has an 800 access
- > That puts you into a call processing system. "Press 1 to place an AT&T
- > call" seems nice, doesn't it? Well guess what -- those rotten payphone
- > operators will not allow the dialpad to work after a call is placed!
- > A friend of mine was sooooo mad (read severely p----- off) he hooked a
- > chain around the bumper of his four wheel drive pickup and drug the
- > whole phone, stand, and concrete pad down the highway. What will they
- > think of next!
-
- Actually, some of those payphones are doing those odd things less than
- for trying to make you use 'their' long distance company, then for
- trying to avoid fraud.
-
- A recent article in "2600" details vulnerabilities in COCOTs (Customer
- Owned Coin Operated Telephones), which are supposed to allow a third
- party to resell service on a regular subscriber loop as pay phone
- service. They do this by giving a fake dial tone, and then redialing
- the target number after the correct toll has been inserted.
-
- Well, if one isn't careful, such as letting people dial anything that
- begins with 10-ATT-0, then people can dial 10-ATT-011xxxxx and get
- INTERNATIONAL calls for 'free' on these phone. And if one waits after
- a call for the other party for dial tone to return, its possible to
- make another call, local, interstate, international, 900, without
- paying. This is one reason keypads get disabled after a call is
- initiated. I suspect they are vulnerable to those 800 numbers that
- use the ANI information to call you back collect.
-
- Well, after reading about these scams, I'm a bit more sympathetic for
- the 'tricks' these payphones seem to play than I was when I first read
- of things like 1-ATT-0 blocks. But not entirely, as if they had made
- it flexible enough when they designed these phones they could block
- things like 10-ATT-011 while letting legitimate 10-ATT-0 calls go
- through. Its only software! :)
-
- Disclaimer: 10-ATT-0 is used an example, of course the same arguments
- apply for the 10-Codes for other carriers.
-
-
- [Moderator's Note: Well, genuine Bell payphones don't seem to have
- those problems, and they are routed through a variety of carriers
- where credit card and collect billing is concerned, although they all
- default to AT&T for coin calls. Maybe the COCOTS could start using a
- little better software. I am not sympathetic. PAT]
-
-