🚀 go-pugleaf

In article <1993Jan8.164545.2401@ucbeh.san.uc.edu> yuanj@ucbeh.san.uc.edu writes:
>In article <1993Jan7.005434.2635@informix.com>, neilw@informix.com (Neil Williams) writes:
>> 
>> Once my wife turned it on and heard someone else talking....
>> Hasn't reoccurred yet, though, but now I keep it on the
>> base more than I would otherwise, for security.
>
>I think almost all the cordless phones even the low, low end models, have
>security circuitry, meaning other phones cannot dial out via your base.  Would
>someone explain in more detail?

The "security" to prevent dialout is some sort of digital handshaking 
which prevents other phones of the same model from using your phone line
while "driving by looking for a dial tone".  It does NOT provide 
communications security or encrypt the voice data.

The motorolla "secure" cordles phone is reputed to use simple analog
inversion of the audio.

The 900mhz Tropez cordless used digital transmission - it is not 
"encrypted", but you can't listen to the conversation with a conventional
radio reciever covering the 900mhz band.

>
>Thanks!
>
>> 
>> -- 
>> Neil Williams: neilw@informix.com
>> 
>> Seen on my last trip on United: "If you are seated in an exit row 
>> and can not (sic) read this card... please notify a crew member."
>
>J. Y.