RE: [Enum] A proposal for Carrier ENUM

["Michael Hammer \(mhammer\)" <mhammer at cisco.com>]

Klaus,

If done right, ENUM would replace the number portability databases
eventually.  It does not make sense to use one database to validate the
data in another database.  The operational procedure for validating data
should be inherent to the database.

Mike


> -----Original Message-----
> From: enum-bounces at ietf.org [mailto:enum-bounces at ietf.org] On 
> Behalf Of Nieminen Klaus
> Sent: Tuesday, October 11, 2005 9:00 AM
> To: enum at ietf.org
> Subject: RE: [Enum] A proposal for Carrier ENUM
> 
> 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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