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Re: Re: paterns for phones' numbers

• To: Richard Tobin <richard@c...>
• Subject: Re: Re: paterns for phones' numbers
• From: John Cowan <cowan@m...>
• Date: Sun, 25 Jan 2004 01:24:23 -0500
• Cc: xml-dev@l...
• In-reply-to: <200401242130.VAA15833@s...>
• References: <bsc3hl$4c8$1@a...> <4iupuvomv3ic51n23gju55uk9a8flu8f4j@4...> <200401242130.VAA15833@s...>
• User-agent: Mutt/1.3.28i

Richard Tobin scripsit:

> Really?  It used to be the case that in Britain that dialling the full
> "long-distance" version of a local number *didn't* work; you had to
> extract the local part.  I think it now generally works, but I wouldn't
> bet on that being the case everywhere.

I believe it now does work in the U.K. to dial local numbers using the
national form with leading zero.  However, I very much doubt that it
works anywhere in the country code 1 (the U.S., Canada, and certain
Caribbean countries), except where (as in New York City) all numbers
must be dialed in national form, and short local forms do not exist.

In any case, there can be no such thing as a number that works from
every country, because the international prefix is 011 in country code
1 and 00 in many (most?) other countries.

Fidonet, which depended for connectivity on the ability to do direct
dialing, stored all numbers in internationally dialable form without the
international prefix, and then used a locally specified ordered list of
rewrite rules of the from "if the first N digits are X, change them to Y".
For example, in Northern New Jersey the rewrite rules were:

	rewrite "+1 201" as blank;
	rewrite "+1" as "1";
	rewrite "+" as "011".

The belief was that this scheme was sufficiently general to work with
any dialing plan anywhere.

-- 
The Imperials are decadent, 300 pound   John Cowan <jcowan@r...>
free-range chickens (except they have   http://www.reutershealth.com
teeth, arms instead of wings and        http://www.ccil.org/~cowan
dinosaurlike tails).                        --Elyse Grasso

• References:
  • Re: paterns for phones' numbers
    • From: Richard Tobin <richard@c...>

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