telecom (05/13/82)
>From JSOL@USC-ECLB Thu May 13 16:51:46 1982
TELECOM AM Digest Friday, 14 May 1982 Volume 2 : Issue 60
Today's Topics: 714/619 Split
Automatic Intercept From A CENTREX
Product Reply - Vadic 345x Modems
Phone Prefix Place Names
Area Code Splitting
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Date: 12 May 1982 1915-PDT (Wednesday)
From: lauren at UCLA-Security (Lauren Weinstein)
Subject: 714/619 split
To: GEOFF at SRI-CSL
It's true. The 714/619 split has been scheduled for this year for
quite some time. Orange County gets to keep 714, the rest of the
(large) 714 code (which is rather lightly populated over much of its
area) gets the new 619 code.
The 213/818 split is coming up a couple of years down the line.
That's the one where Los Angeles south of Mulholland Dr. keeps 213 and
everything to the north (the San Fernando Valley) switches to 818.
Since much of the San Fernando Valley is part of the City of Los
Angeles, we will thus have a two area code city. Bizarre, but true.
--Lauren--
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Date: 13 May 1982 0913-EDT
From: John R. Covert <RSX-DEV at DEC-MARLBORO>
To: smb.unc at UDEL-RELAY
Subject: Automatic Intercept from a CENTREX
It is not possible in outpulsing DID PBXs. It is possible in No. 1
ESS CO CENTREX (which UNC has).
It is not as straightforward as for normal numbers (especially when
taking it back OFF intercept) -- but it is done within the Hinsdale,
Illinois Central office for Bunker Ramo.
At Bunker Ramo all numbers went to AIS, so it could have been done in
a different manner that what would have to be done to just put one on
it.
There are also tariff considerations.
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Date: 13 May 1982 at 0912 Pacific Daylight Time
From: gp at lll-unix (George Pavel - LLNL/EE)
Subject: Vadic 345x modems
To: smb.unc@UDel-Relay
We had infant mortality problems with our first couple of 3451 modems
which we got when they were first introduced. The later ones (5 or
more, I don't remember how many we've gotten) we have had no trouble
with.
By the way, we just got a new 3451PA modem with integral autodialer.
It's probably OK for use with a terminal with attached human, but it's
quite awkward for computer-controlled dialing. The carrier detect
signal does not show up at the RS232 interface, so the computer has no
way of knowing if the other side hung up in order to release the
modem.
George Pavel (gp at lll-unix)
Lawrence Livermore National Laboratory
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Date: 13 May 82 11:49:47-EDT (Thu)
From: Carl Moore (VLD/VMB) <cmoore@BRL>
cc: cmoore at BRL
Subject: replies
Volume 2 no. 59 (the latest digest I have at this writing) had 2 items
to which I will now respond.
At least for now, I am interested ONLY in the place names that would
appear on the phone bills. So far, this has been a VERY SLOW
undertaking, because of the expense of getting such info onto my own
phone bill, the privacy of other people's bills, etc. It is possible
to check with the operator for "place name", but this of course gets
to be a nuisance if done too many times.
A Telecom digest sent in Dec. 1981 mentioned the 2 new area codes in
California. To rehash (and to add some bits from other sources): 619
is to be carved from 714 in Nov. 1982, and 818 is to be carved from
213 sometime in 1984. California already has 8 area codes, more
than any other state; New York state has 7, and Texas has 6.
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End of TELECOM Digest
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