telecom@ucbvax.ARPA (04/04/85)
From: Jon Solomon (the Moderator) <Telecom-Request@BBNCCA>
TELECOM Digest Wed, 3 Apr 85 23:28:38 EST Volume 4 : Issue 176
Today's Topics:
Re: Equal access carriers
Re: TELECOM Digest V4 #174
Re: Common Carrier T1
The wonders of Modern Technology
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Date: Tue 2 Apr 85 22:10:48-EST
From: Robert Scott Lenoil <G.LENOIL%MIT-EECS@MIT-MC.ARPA>
Subject: Re: Equal access carriers
To: jsol@MIT-MC
Date: 1 April 1985 22:28-EST
From: Jon Solomon <JSOL @ MIT-MC>
To: telecom @ BBNCCA
Can anyone furnish me with a complete list of common carriers
serving the Boston area and their equal access prefix codes? I want
to do a survey on quality vs. price so I can decide which one
will best serve my needs.
Thanks,
--JSol
Here are all the prefix codes that I know:
10288 - AT&T
10222 - MCI
10333 - possibly US Tel?
10444 - ALLNET
10777 - SPRINT
10888 - SBS
10488 - ITT
10220 - Western Union
That only leaves First Phone LINK Service. If anyone knows their prefix
code, please post it.
-Robert
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Date: Tue, 2 Apr 85 09:11:56 est
From: decvax!watmath!hardware@Berkeley (MFCF Hardware Lab)
To: telecom@Berkeley
Subject: Re: TELECOM Digest V4 #174
I was wondering how I should go about posting an arcticle on fa.telecom
I think I have to do it through the moderator (You?). My question to the
board is: does anyone have the scematics for telephone keypads? I have drawn
up four keypads and each one has a different layout, they are western electric,
northern telecom and two northern electric. One of the northern electric is out
of a payphone, which is probably why it is different. I am an avid phone
collector, and would appreciate any drawings or scematics anyone has on tele-
phones. (PBX and such included.)
Thanks,
Andrew Rahme.
hardware@watmath
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Date: 3 Apr 1985 08:37:37 PST
Subject: Re: Common Carrier T1
From: COHEN@USC-ISIB.ARPA
To: ART@ACC.ARPA
Art,
I have to admit it: I nearly fell for it, until I noticed the date of your
message. Really one of the cleverest and most subtle April-fools messages!!!
Danny.
P.S.,
In the remote case that this is a genuine inquiry: There is a LOT to the
technical requirement for T1-framing. There are STRICT rules for the
193rd bit -- without it all the equipment of the carrier will indicate
errors and would send warning messages to their NCC's which probably will
result in discontinuing your service, unless special costly arrangements
are made around it. There also others rules like the good old
"no-consecutive-16-zeroes" and "at-least-3-ones-in-any-sequence-of-24-bits",
and more. Some of these rules are no longer mandatory in Europe, and within
N years they will not be needed here either, hopefully for a small N.
The 193rd-bit will be in for LONG time. I bet.
[]
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Date: 3 Apr 85 15:12:20 PST (Wednesday)
Subject: The wonders of Modern Technology
From: "Bruce Hamilton.OsbuSouth"@XEROX.ARPA
To: TELECOM@BBNCCA.ARPA
My G.E. one-piece phone has a lot of nice features, like optional 20
pulse per second dialing as well as 10-pulse and tone, plus a 12-number
memory. However, the ergonomics are TERRIBLE. The pulse/tone and
ringer on/off switches are right next to your thumbs. And another
thing, which is the object of this story...
Last night I picked up the phone and dropped it. I noticed I might have
accidently dialed some digits, so I tried pressing the switchhook
countless times, but I could NOT get dial tone. I decided to let it go
until morning.
Imagine my surprise when, 10 minutes later, four cops showed up at my
door! Turns out there are three "emergency" buttons just above the
numeric keypad which require only a SINGLE keystroke to call the
numbers. I had programmed in 911. Apparently the 911 folks can hold
onto your line somehow, once you call them. When they didn't hear a
voice on the other end, they sent the cops.
After the appropriate apologies, I STILL couldn't get dial tone. Ten
minutes later I saw my Code-A-Phone answering machine flashing one of
its lights in a strange way, and I figured out that IT had clamped onto
my line, started recording, and finally stopped and started flashing
when it ran out of tape.
Moral: DON'T program in emergency numbers.
--Bruce
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End of TELECOM Digest
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