[1023] in Commercialization & Privatization of the Internet
bandwidth of the phone system
daemon@ATHENA.MIT.EDU (Katy T. Kislitzin)
Tue Jul 16 12:41:17 1991
Date: Tue, 16 Jul 91 09:39:30 -0700
From: ktk@nas.nasa.gov (Katy T. Kislitzin)
To: craig@sics.se
Cc: tal@warren.mentorg.com, nren-discuss@psi.com, com-priv@psi.com
In-Reply-To: Craig Partridge's message of Tue, 16 Jul 91 09:00:58 +0200 <9107160701.AA04019@garuda.sics.se>
From: Craig Partridge <craig@sics.se>
Date: Tue, 16 Jul 91 09:00:58 +0200
Sender: craig@sics.se
> Well, I don't think I've ever tried to estimate the total
> daily bandwidth used by the telephone system. Honestly, I
> don't want to.
Someone told me that, for long distance calling in the US, the bandwidth
required was less than a gigabit. This may well be wrong, but if right
it is an interesting number, given that a single Cray with Borman's
software can send about that much by its little lonesome...
Craig Partridge
on sabbatical at the Swedish Institute of Computer Science
incoming Editor-in-Chief, IEEE Network Magazine
outgoing Editor, ACM SIGCOMM Computer Communication Review
A T1 consists of 24 64 Kb channels, or 24 voice channels. One gigabit
equals 15,625 * 64 * 1000, so 1 Gb == 15,625 voice circuits.
--kt
Katy Kislitzin, ktk@nas.nasa.gov, ...!{ames, uunet}!nas.nasa.gov!ktk
[NASA/Ames is in Mt. View CA. I live in the Santa Cruz Mountains
with my S.O. and cats Sid, Zippy, Nickel & Copper]
