Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!mailrus!accuvax.nwu.edu!nucsrl!telecom-request
From: nvuxr!deej@bellcore.bellcore.com (David Lewis)
Newsgroups: comp.dcom.telecom
Subject: Re: 10xxx/950-xxxx Mapping?
Message-ID: <4669@accuvax.nwu.edu>
Date: 2 Mar 90 15:39:34 GMT
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X-Telecom-Digest: Volume 10, Issue 139, Message 5 of 10


In article <4535@accuvax.nwu.edu>, hokey@plus5.com (Hokey) writes:
 
> I've seen lists of the various 10xxx long distance companies.
 
> I occasionally end up at a telephone which says I can use either 10xxx
> or 950-xxxx to get to alternative carriers.  If a 10xxx call fails or
> is blocked, I'd like to try a 950-xxxx instead, but I have not seen a
> list of 950-xxxx long-distance companies, nor have I seen a "mapping
> algorithm".
 
> So, is there an easy mapping between the two?

Yep.  Consider the XXX in 10XXX to be the Carrier Access Code.  The
appropriate number to call using the 950- format is 950-0/1XXX.  (Or
for those of you who prefer a more comp sci-ish syntax, 950-[0|1]XXX.)

Either 0 or 1 as the first digit of the "extension" should work.

Of course, 950-0/1XXX doesn't always work for all carriers, just as
10XXX doesn't always work for all phones.  But I'm not going to get
into the complexities of feature group B and feature group D and so on
here...


David G Lewis					...!bellcore!nvuxr!deej
	(@ Bellcore Navesink Research & Engineering Center)
			"If this is paradise, I wish I had a lawnmower."