RE: [Enum] Carrier ENUM

["Rosbotham, Paul" <Paul.Rosbotham at cwmsg.cwplc.com>]

>This is clear for geo-graphic numbers, for
>service numbers there is some additional
>discussion necessary, e.g. 800 numbers
>or corporate numbers can (e.g. in Austria) assigened from
>the regulator either via a "Carrier" or DIRECTLY 
>to the End-user, e.g. an enterprise To use these
>numbers on the PSTN , the enterprise needs to find
>a carrier hosting these numbers.

Richard,

This is probably a naive answer, but haven't you answered your own question here?  Regardless of the number being assigned directly to the enterprise, they still need to contract with a carrier for it to work on the public telephony network.  Shouldn't it then be that carrier which is publishing location information in carrier-ENUM for other carriers to act upon?

*Within E.164* (ie excluding short codes etc) I'm only aware of one class of number that can be served by multiple carriers, and that's Universal International Freephone Numbers (UIFNs, +800)....and even in this case I'm not aware of (m)any customers actually using the facility. [Background, the idea was that a multinational could use e.g. a Japanese carrier for +800 calls originated from Asia, French for calls originated from Europe, Canadian from the Americas etc]  Therefore, for the vast majority of numbers there's only one carrier of record.

Cheers

Paul
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