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From: dattier@ddsw1.mcs.com (David Tamkin)
Newsgroups: comp.dcom.telecom
Subject: Re: N0X/N1X Prefixes -- First to Change 1+7D to 7D?
Message-ID: <16533@accuvax.nwu.edu>
Date: 29 Jan 91 02:41:27 GMT
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X-Telecom-Digest: Volume 11, Issue 78, Message 4 of 5


Steven Minneman wrote in volume 11, issue 66:
 
SM> In article <15921@accuvax.nwu.edu> cmoore@brl.mil (VLD/VMB) writes:
 
CM> ...as far as I can tell, is the first to prepare for such by
CM> removing the 1+ from toll calls within it
 
SM> And in the 415 area, we have never had to use 1+7D.
 
Patrick Townson commented:
 
PT> [Moderator's Note: Nor did we in Chicago until a few years ago. For
PT> however long we dialed seven digits for anything in the old 312 area,
PT> and ten digits for anything else. In order to allow the use of
PT> prefixes which 'look like area codes' they started using 1+ here.  PAT]
 
We still don't use 1+7D in Chicago.  It's 1+10D that we had to start
using in 1982, only for inter-NPA calls, when we were preparing for
N [01] X prefixes.
 
We've never dialed 1+7D here.  Before October 1, 1982, Illinois Bell
tolerated 1+10D; then they started requiring it.  Centel recommended
it even before then and has required it since, except for calls to
area code 815, on which Centel accepts 10D for some reason, even
though they insist on 1+10D for calls between 312 and 708.


David Tamkin  Box 7002  Des Plaines IL  60018-7002  708 518 6769  312 693 0591
MCI Mail: 426-1818  GEnie: D.W.TAMKIN  CIS: 73720,1570   dattier@ddsw1.mcs.com


[Moderator's Note: In Chicago itself we never dialed 1+7D, but some of
the outlying suburbs did. Antioch comes to mind, but then they could
dial 396-xxxx without the 414 on the front. The rest of us couldn't.
And interestingly enough, Americtech Mobile still allows 10-D calls
between 708 <==> 312 <==> 815, or you can go 1+ 10-D if that is your
pleasure.    PAT]