1994-03-14 - re: voice encryption/isdn

Header Data

From: Mark Hittinger <bugs@netsys.com>
To: cypherpunks@toad.com
Message Hash: 522fad6073ec7e9c9dad6a06caef65c321637954c4abdeaf9d3e44deb1ff2a77
Message ID: <199403140415.AA05313@netsys.com>
Reply To: N/A
UTC Datetime: 1994-03-14 04:12:06 UTC
Raw Date: Sun, 13 Mar 94 20:12:06 PST

Raw message

From: Mark Hittinger <bugs@netsys.com>
Date: Sun, 13 Mar 94 20:12:06 PST
To: cypherpunks@toad.com
Subject: re: voice encryption/isdn
Message-ID: <199403140415.AA05313@netsys.com>
MIME-Version: 1.0
Content-Type: text




>> [IBM ISDN board with TI DSP, COM1 interface, 64kbps]

>The big problem with ISDN is still getting connectivity to the
>people you want to talk to and getting service at reasonable prices

Yep.  But it may be there some day.  Ken Olson called ISDN a joke.
I remember seeing somebody in Computer World saying ISDN stood for

"I Still Don't kNow".

>Do you know if the TI DSP is user-programmable, or if it's just
>performing most of the ISDN functions?

Hah!  We are talking about an IBM board here!! :-)   There was some
kind of ROM on the board, it may be an 8051 with EPROM?  Or possibly
a 68701.  We will figure it out at some point.

Speaking of DSP the new AT&T 3700 modem (from paradyne actually) has
a DSP and it seems to be driven by an easily modifyable rom.  Just another
possibility.


While we are blue skying about this - what about the idea of using two
cellular connections in parallel?  Aside from cost it might create some
interesting interception problems.
---------
I'd like a 250 Mhz 128 bit hybrid processor with 64 meg of 8 way interleaved
memory, a 10 megabyte per second i/o channel, two 3 gig hard disks, two dat
drives with compression, and a large diet coke.
-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: 2.3a

mQCNAiz4FWMAAAEEALBCb7HZS7V4gbsp9yJ7Yty49jQ9wcgRhkLjNNgdyJbrJZCq
5/sv4Ljy/4AhVhjlJyZS8L3owS8l0ClZVzWw4/kO3KN7MPz4YPPR7+qIlPQVM0yv
gWpJ43EZZ8b8cvAkE9HATCKWktY2ReRSX5DLnScDH/n5jivw+MD/UO8fURCVAAUR
tCBNYXJrIEhpdHRpbmdlciA8YnVnc0BuZXRzeXMuY29tPg==
=VbKi
-----END PGP PUBLIC KEY BLOCK-----




Thread