-----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.] -----BEGIN PGP SIGNATURE----- Version: 2.6.2 Comment: Gratis auto-signing service iQBFAwUBMFjO4yoZzwIn1bdtAQFmjwGAwMA+G0nO0m/lmYeqPJEsC5NJNLvS5cYk +cMaVSJb+Kwk6+uywu8v088Ih8Nz7uo9 =elV9 -----END PGP SIGNATURE-----
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 | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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:
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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. - --- [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.]
-----BEGIN PGP SIGNATURE----- Version: 2.6.2 Comment: Gratis auto-signing service
iQBFAwUBMFjO4yoZzwIn1bdtAQFmjwGAwMA+G0nO0m/lmYeqPJEsC5NJNLvS5cYk +cMaVSJb+Kwk6+uywu8v088Ih8Nz7uo9 =elV9 -----END PGP SIGNATURE-----
participants (3)
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m5＠dev.tivoli.com -
Mac Norton -
shamrock＠netcom.com