NODE 5dc4a40bRe: GAK
shamrock@netcom.com (Lucky Green)Thu, 14 Sep 95 17:57:32 PDT
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In article <9509141935.AA09315@argosy.MasPar.COM>, koontz@MasPar.COM
(David G. Koontz) wrote:
>While not every telephone, every telephone switch is required
>to be tap capable - The Digital Telephony Act. Note there is
>provision for the government to pay costs for Telcos to make
>their phones tappable - as yet unfunded by Congress.
Most telephones can be used to monitor conversations in the room they are
installed in even while on-hook. No need to ever enter the premises. Just
drive it with AC. Look at your basic telephone diagram and remember
Xc=1/(omega*C) from your AC circuits class.
- --
- -- Lucky Green <mailto:shamrock@netcom.com>
PGP encrypted mail preferred.
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NODE 99398951Re: GAK
m5@dev.tivoli.com (Mike McNally)Thu, 14 Sep 95 18:05:25 PDT
Lucky Green writes:
> Most telephones can be used to monitor conversations in the room they are
> installed in even while on-hook. No need to ever enter the premises. Just
> drive it with AC. Look at your basic telephone diagram and remember
> Xc=1/(omega*C) from your AC circuits class.
The phrase "most telephones" may have been accurate when it meant "500
sets", but now that people generally own electronic phones I wonder
whether the lucky one's statement remains true. (It might; I'm an
electronics ignoramus.)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| Nobody's going to listen to you if you just | Mike McNally (m5@tivoli.com) |
| stand there and flap your arms like a fish. | Tivoli Systems, Austin TX |
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NODE 25f8be21Re: GAK
Mac Norton <mnorton@cavern.uark.edu>Tue, 19 Sep 95 20:18:00 PDT
As I said, phones are inherently tappable--going
upstream to the switch must makes it easier to do
and harder to detect. This doesn't force the
conclusion that, if people speak in code on the
phone, they have to give the gov't the key.
MacN
On Thu, 14 Sep 1995, Lucky Green wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
>
> In article <9509141935.AA09315@argosy.MasPar.COM>, koontz@MasPar.COM
> (David G. Koontz) wrote:
>
>
> >While not every telephone, every telephone switch is required
> >to be tap capable - The Digital Telephony Act. Note there is
> >provision for the government to pay costs for Telcos to make
> >their phones tappable - as yet unfunded by Congress.
>
> Most telephones can be used to monitor conversations in the room they are
> installed in even while on-hook. No need to ever enter the premises. Just
> drive it with AC. Look at your basic telephone diagram and remember
> Xc=1/(omega*C) from your AC circuits class.
>
> - --
> - -- Lucky Green <mailto:shamrock@netcom.com>
> PGP encrypted mail preferred.
> - ---
> [This message has been signed by an auto-signing service. A valid signature
> means only that it has been received at the address corresponding to the
> signature and forwarded.]
>
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> Version: 2.6.2
> Comment: Gratis auto-signing service
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> iQBFAwUBMFjO4yoZzwIn1bdtAQFmjwGAwMA+G0nO0m/lmYeqPJEsC5NJNLvS5cYk
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> =elV9
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>