[102100] in North American Network Operators' Group
Re: EU Official: IP Is Personal
daemon@ATHENA.MIT.EDU (Stephane Bortzmeyer)
Fri Jan 25 09:12:15 2008
Date: Fri, 25 Jan 2008 15:05:54 +0100
From: Stephane Bortzmeyer <bortzmeyer@nic.fr>
To: Roland Perry <lists@internetpolicyagency.com>
Cc: nanog@merit.edu
In-Reply-To: <nix4PU8k0bmHFARM@perry.co.uk>
Errors-To: owner-nanog@merit.edu
On Fri, Jan 25, 2008 at 10:42:44AM +0000,
Roland Perry <lists@internetpolicyagency.com> wrote
a message of 15 lines which said:
> in the UK it [phone number portability] 's done with something
> similar to DNS. The telephone system looks up the first N digits of
> the number to determine the operator it was first issued to. And
> places a query to them. That either causes the call to be accepted
> and routed, or they get an answer back saying "sorry, that number
> has been ported to operator FOO-TEL, go ask them instead".
What happens when a phone number is ported twice, from BAR-TEL to
FOO-TEL and then to WAZ-TEL? Does the call follows the list? What if
there is a loop?
The solution you describe does not look like the DNS to me. A solution
more DNS-like would be to have a root (which is not an operator)
somewhere and every call triggers a call to the root which then
replies, "send to WAS-TEL".
