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From: bnrgate!.bnr.ca!hwt@uunet.uu.net (Henry Troup)
Newsgroups: comp.dcom.telecom
Subject: Re: NANP Codes AND I Want to Dial the Area Code on a Local Call
Message-ID: <8986@accuvax.nwu.edu>
Date: 15 Jun 90 14:46:38 GMT
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Reply-To: Henry Troup <bnrgate!bwdlh490.bnr.ca!hwt@uunet.uu.net>
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X-Telecom-Digest: Volume 10, Issue 436, Message 5 of 12


In article <8958@accuvax.nwu.edu> "John Slater <johns@happy.uk.
sun.com> writes:

>All the switch has to do is delay passing control onto an
>international switch until it has received sufficient digits to check
>that the call really needs it.  Why should it be any more complicated
>than that?

Eventually, it shouldn't be more complicated than that.  However, as
late as last August, some parts of the U.K. still had routing codes,
not area codes.  A routing code is a 'context-dependent' code: the
London routing code for Dundee, Scotland is 382.  The London routing
code for St. Andrews is 396 (?).  But you dial a totally different
code to call St. Andrews from Dundee.  The Tayside Region phone book
has an amazing number of tables of what to dial from _where_you_are_
to _where_you_want_to_call.

I assume that this means the Scottish switches are old crossbar and
SxS, with no smarts soever to translate anything.


Henry Troup - BNR owns but does not share my opinions
 ..uunet!bnrgate!hwt%bwdlh490 or  HWT@BNR.CA