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- Path: sparky!uunet!zaphod.mps.ohio-state.edu!news.acns.nwu.edu!telecom-request
- Date: Sat, 2 Jan 93 16:33:02 CST
- From: bruce@zuhause.MN.ORG (Bruce Albrecht)
- Newsgroups: comp.dcom.telecom
- Subject: Re: Suggestions Wanted For Phone Device to Restrict Toll Charges
- Message-ID: <telecom13.2.10@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 13, Issue 2, Message 10 of 12
- Lines: 29
-
- In article <telecom12.926.1@eecs.nwu.edu> stevef@wrq.com (Steve
- Forrette) writes:
-
- > The Moderator noted:
-
- >> discovered that in the two or three seconds the phone was off hook
- >> (with dial tone) before the autodialer started doing its thing, his
- >> pocket tone dialer could cut that dial tone and let him call anywhere
- >> on the store's nickle. Provided he got his digits dialed before the
- >> autodialer cut in, telco accepted his digits and ignored those from
- >> the device.
-
- > There are auto-dialers available that prevent this. I tried this
- > trick with the elevator phone in our building. When you take the
- > phone off-hook, you hear dialtone, then hear it dial the answering
- > service for the elevator company. As soon as the dialer hears a
- > touchtone generated from the headset, it hangs up the line. Boy, they
- > won't let anybody have any phun these days!
-
- Wouldn't it be easiest to rig a circuit that disconnects the handset
- circuitry until the phone had completed the predetermined dial
- sequence? I suppose, to be safe, it would also need to recognize the
- dial-tone so that it would cut the handset out if someone left the
- phone off the hook after disconnect.
-
-
- bruce@zuhause.mn.org
-
-