Re: [enum-wg] Austria starts with the ENUM-based number range

[Otmar Lendl <]

On 2005/04/18 22:04, Carsten Schiefner <enumvoipsip.cs@localhost wrote:
> Stastny Richard wrote:
> >- subscribers must have
> >   [ ] Austrian citizenship
> >   [ ] Austrian residency
> >   [ X] neither one, ie. it's gobally open
> 
> cool - so all registrars listed here: 
> http://www.enum.at/index.php?id=64&L=9 would help me out?

Not necessarily.

They need to cooperate with a communication service provider
(KDB: Kommunikationsdienstebetreiber). All delegations within
0780 must name the KDB which will get the official allocation
of the corresponding E.164 number.

> >- To what extend NP is implemented?
> >
> >?
> >What kind of NP do you mean?
> >
> >Porting ENUM domains from one registrar to the other? -yes
> >Porting ENUM doamins from one Name server to the other? -yes
> >Pointing the NAPTR to another sip URI? -yes
> 
> Porting the E.164 number in the PSTN world from one operator to the 
> next, as the latter has much better break-out rates, for example. Or 
> would that be entirely opaque to the subscriber as she deasls with a 
> communication service provider only anyways?

The question misses the point.

First of all, you cannot port numbers from other number ranges
to the 0780 semantic. Or vice versa. Thus NP only applies within 0780.

The call routing on the PSTN side is NOT AFFECTED by the selection
of the KDB. Any telco can route *all* calls to *all* 0780 numbers
to the same PSTN->VoIP gateway. The telco (KDB) currently owning
the number has no right to receive the call via the usual SS7 interconnect.
If there are multiple gateways available on the SS7 network, any
telco originating calls to 0780 can choose the most convenient (i.e.
cheapest) one to terminate calls to all 0780 numbers.

All the business with the KDB "owning" the 0780 numbers has just two
reasons:

a) You need to provide a PSTN->VoIP gateway (directly or via a contract
so someone else) before you're eligible to get 0780 number.

	=> this guarantees that there is a gateway which all other 
	   telcos can use.

b) The legal requirements on number allocations are fulfilled.

/ol
-- 
< Otmar Lendl (lendl@localhost) | nic.at Systems Engineer >