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- Path: sparky!uunet!spool.mu.edu!agate!usenet.ins.cwru.edu!cleveland.Freenet.Edu!bz223
- From: bz223@cleveland.Freenet.Edu (Danny Guy Frezza)
- Newsgroups: sci.crypt
- Subject: Re: Motorola 'Secure-Clear' Cordless Telephones
- Date: 2 Jan 1993 02:31:05 GMT
- Organization: Case Western Reserve University, Cleveland, OH (USA)
- Lines: 58
- Message-ID: <1i2up9INNk5e@usenet.INS.CWRU.Edu>
- References: <C05JAM.MJL@ais.org>
- Reply-To: bz223@cleveland.Freenet.Edu (Danny Guy Frezza)
- NNTP-Posting-Host: hela.ins.cwru.edu
-
-
- > Yes, technically, it is a felony for you to use a speech-
- >inversion descrambler to monitor these Motorola 'Secure Clear'
- >cordless. Or for that matter, the new Radio Shack DUoPHONE ET-499,
- >cordless phone which also depends on speech-inversion for privacy
- >protection. The public utility of the ECPA has been argued about
-
- Excellent point here. The very simple point is that having some
- basic scrambling of the signal is better than not at all! The person
- person having a scanner wwhose intentions is to eavdrop could face possible
- consequences according to the law. This reason alone makes having some
- simple, basic private feature of scrambling well worth the few extra
- bucks! However, the question of how good the security one gets, surely
- is not the best unless one wants to pay big bucks.
- I bought a Motorola Model 100, the first model of the series, that
- offers the privacy feature spoken above. I am very pleased with the phone,
- since it is half the size of my older AT&T 5300, but has 10 channels to
- scan instead of the three. But also, it does have a 3 volume level control
- for amplication of received signals which is a big plus for me, since I am
- hard of hearing and wear hearing aids --- also, it is hearing-aid compatible,
- which some cordless phones are not.
- > Despite the ECPA, it is unconscionable to me that Motorola --
- >who surely knows better-- would produce the slick brochure &
- >specifically market the 'Secure Clear' line as being invulnerable
- >to eavesdropping. Their wording unequivocally gives the
- >impression that the 'Secure Clear' conversations are secure, not
- >only from other cordless phone & baby monitors, which have several
- >common frequencies, but also against communications hobbyists with
- >scanner radios.
- >
- Another good point. However, I had asked AT&T if they plan to
- come out this year with a cordless phone having some kind of privacy feature,
- they said no. I don't think Motorola was trying to fool me; I knew what
- this was and was very basic scrambling of the signal. But again, having it,
- for at least the reason listed above, makes it worth it.
-
- >manuals. The Tropez 900 actually seems to generate a very weak
- >analog harmonic in the 440MHz spectrum, but you'll still be a
- >lot better off than poor old Lee Trevino.
- >
- >
- What specfic information does the Tropez 900 have? How does it
- compare in price to the Motorola or Radio Shack Model? Are we talking about
- $150-$200 for a basic model or $400-600?
-
- >
- >--
- > Tim Tyler Internet: tim@ais.org MCI Mail: 442-5735
- >P.O. Box 443 C$erve: 72571,1005 DDN: Tyler@Dockmaster.ncsc.mil
- >Ypsilanti MI Packet: KA8VIR @KA8UNZ.#SEMI.MI.USA.NA
- >48197
- >
-
- --
-
- Dan Frezza
- Internet: bz223@cleveland.Freenet.Edu
-
-