Telecom-Request%usc-eclc@brl-bmd.UUCP (Telecom-Request@usc-eclc) (10/04/83)
TELECOM Digest Tuesday, 4 Oct 1983 Volume 3 : Issue 66
Today's Topics:
High speed modems for switched network
Data collection by polling remote locations for human response
Re: Spin back the years...
Cincinnati Bell area
Third Party Billing
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From: jimbo%ucbic@Berkeley (Jim Kleckner)
Date: 1 Oct 1983 1303-PDT (Saturday)
Subject: High speed modems for switched network
I read an article about two weeks ago in the IEEE "Potentials"
magazine which discussed modems for dial-up use. The author worked
for Anderson-Jacobsen on the design of their 4800 BPS full-duplex
modem which has the model number AJ-4048. The article indicated that
the modem has been in use since September of 1982.
Has anyone out there had any experience with this unit? Further, has
anyone been able to get hold of the new 2400 BPS full-duplex modems
from Vadic? While not economical for the average user, these units
could help cut the cost of uucp trunks quite a bit.
Thanks, Jim Kleckner ( jimbo@Berkeley or ucbvax!jimbo )
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Date: 3 Oct 1983 0256-EDT
From: John R. Covert <RSX-DEV at DEC-MARLBORO>
Subject: Data collection by polling remote locations for human
Subject: response
[Usenet-address: "{ucbvax,decvax}!decwrl!rhea!castor!covert"]
The product I have been working on which should be on the shelf VERY
SOON, called TMS (Telephone Management System), may very well meet
your needs.
It can make outgoing calls, speak a voice announcement (which may be
varied based on the particular call being made), accept touch-tone
input, and respond further based on that input.
It is an option on the DEC Professional 350 personal computer. The
complexity of your application will determine whether the currently
available storage (10 Megabyte Winchester) will be adequate, or
whether you would need to connect the PC with TMS via DECNET to a host
with more storage.
An application to do what you want might be made general purpose
enough so that it could not only be used in your environment but also
in others.
You may want to contact our product manager at
{decvax,ucbvax}!decwrl!rhea!eve!steingart
His name is Bob Steingart.
TMS can work with Touch-Tone or rotary phones for outgoing. The
polled party must have Touch-Tone, so it should only be used for
calling to pre-defined groups. (Receiving rotary pulses, although
occasionally done, does not work reliably, and does not work at all
from No 1 and No 2 ESS offices.)
The requirement for Touch-Tone response allows it to determine whether
it reached a destination where the purpose of the call is understood.
Outgoing calls would begin with a repetitive, simple, prompting
announcement.
Locations which only have rotary service would have to have auxilliary
or acoustic tone pads.
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Date: Wed, 28 Sep 83 16:05:26 EDT
From: Carl Moore (VLD/VMB) <cmoore@BRL-VLD>
Subject: Re: Spin back the years...
You refer to the upcoming split (212/718) in NYC. It should NOT
create long-distance calls within a building. Such a split is planned
to be along borough lines, protests by some notwithstanding. Besides,
setting up the new 718 area will not change the existing message-unit
plan in NYC area (includes Westchester & Nassau suburbs), it just
means that some calls will require more digits. Such message- unit
plan already requires the area code on local calls which cross area
code boundaries (e.g. 212-327 to 516-239 is a 1-unit call).
However, you might find some buildings with more than 1 area code in
LA area after 213/818 split. There are some exchanges which are
designated "LA foreign exchange" in, say, Burbank (213-849 - Jsol),
which goes into 818 area, but the LA foreign exchange stays in 213.
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Date: Mon, 3 Oct 83 12:34:36 EDT
From: Carl Moore (VLD/VMB) <cmoore@brl-vld>
Subject: Cincinnati Bell area
Back in 1977 in Cincinnati Bell area (all of 513, a chunk of 606 and a
much smaller piece of 812), calls within such area did not require use
of an area code, but long-distance calls from such area to all other
points did.
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Date: Mon, 3 Oct 83 12:37:52 EDT
From: cmoore@brl-vld
In Manhattan, I never recalled seeing phone books in outdoor phone
booths. (From 1976 onward.)
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Date: Mon, 3 Oct 83 12:42:50 EDT
From: cmoore@brl-vld
(add this to note about Manhattan phone booths) "From 1976 onward"
refers to my own visits there, not necessarily to when such
directories were removed.
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Date: 3 Oct 1983 1624-EDT
From: John R. Covert <RSX-DEV at DEC-MARLBORO>
Subject: Third Party Billing
Unless your business office was confused (a not unlikely possibility)
you misunderstood them.
When they advised you to get a calling card, it was because of the new
policy of requiring confirmation on third number billing from coin
phones.
There is no intention of eliminating third number billing. It can
still be done from non-coin phones without confirmation and from coin
phones with confirmation.
Once billed-number screening is activated, the operator will get an
immediate indication that 3rd number billing is not permitted when the
number is entered.
By the way -- it was (according to the letter) supposed to have been
activated on my line two weeks ago. Still hasn't been.
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End of TELECOM Digest
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