[174524] in North American Network Operators' Group
Re: [VoiceOps] ITFS Term vendor question
daemon@ATHENA.MIT.EDU (Jay Ashworth)
Wed Sep 17 18:03:14 2014
X-Original-To: nanog@nanog.org
Date: Wed, 17 Sep 2014 17:59:51 -0400 (EDT)
From: Jay Ashworth <jra@baylink.com>
To: NANOG <nanog@nanog.org>
In-Reply-To: <CACw3o7j3pW8Ke3-6mgL2g1YhHMj7p7WTAEcka6wjgo-yQ-r8qQ@mail.gmail.com>
Errors-To: nanog-bounces@nanog.org
---- Original Message -----
> From: "Nick Crocker" <nick.crocker@gmail.com>
> Can someone shed some light on how you might be accomplishing this, I have
> a hard time believing that customers are being told they cannot dial TF
> numbers in their own country.
In the US, it's always been my understanding that what we call INWATS calls
are dipped *at the originating CO*, and the actual toll call across the
SS7/TDM backbone goes out using either the real 10D DN of the target line,
or some fake 10D that routes to the appropriate trunk group somehow at the
destination end.
So it's not that unusual to me that a network that is interfacing at
Class 4, instead of Class 5, might be unable to originate calls to TF DNs.
I admit to not being sure this is a worldwide view of the issue, as our
Wikipedian friends would say, though.
Cheers,
-- jra
--
Jay R. Ashworth Baylink jra@baylink.com
Designer The Things I Think RFC 2100
Ashworth & Associates http://www.bcp38.info 2000 Land Rover DII
St Petersburg FL USA BCP38: Ask For It By Name! +1 727 647 1274
