RE: [Enum] A proposal for Carrier ENUM

["Nieminen Klaus" <Klaus.Nieminen at ficora.fi>]

Hello, 

One clarification:

> -----Original Message-----
> From: enum-bounces at ietf.org [mailto:enum-bounces at ietf.org] On Behalf
Of Stastny Richard
> Sent: 11. lokakuuta 2005 14:28
> To: Antoin Verschuren; enum at ietf.org
> Subject: RE: [Enum] A proposal for Carrier ENUM
> 
>> In the private contract between the terminating party and number
>> holder, the terminating party can simply insist that the contract is
only
>> valid (they can only offer the service) if the number holder enters
his 
>> numberblock in the Carier ENUM tree, delegating it to the terminating

>> party. The carrier ENUM tree is then simply the place where a
>> carrier-of-record is defined, as the NRA does not have this
information.
>
> Is it true that the NRA does not have this information?

At least in some cases NRAs do not have information about the network
that serves the numbers directly assigned to the users. I do not know,
if the same problem exists also for number ranges assigned to telcos,
but I assume that this may be tha case at least for numbers that are
further delegated to other service providers (e.g. Skype) by a contract.

For ported numbers I believe that all implementations involve the use of
databases that contain information on the network with which ported
numbers are associated. Therefore this should not be a problem.

regards,

- Klaus -
___________________________________________
KLAUS NIEMINEN
Senior Adviser
Finnish Communications Regulatory Authority
Internet and Information Security
P.O. Box 313
FIN-00181 HELSINKI
FINLAND
tel.: +358 9 6966 634
fax: +358 9 6966 873
e-mail: klaus.nieminen at ficora.fi
www: http://www.ficora.fi


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