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

chenhui at cnnic.cn wrote:
> Hi all,
> 
> I have several questions...
> 1) Which switching machine takes in charge of "triggering an ENUM query"? Is it
> the local-part machine?

It will usually consist of several components: A SS7 "speaking" 
component, a ISDN to SIP/H.323 (talking about voice) Gateway, probably 
an external box doing the ENUM lookup and controlling the gateway, plus 
a session border controller / firewall ...


> 2) Is it that ENUM registry in Austria stores all the ENUM NAPTR records of all
> users? And telco service providers agree to cooperate with ENUM registry?

Neither. But:

It's the user's choice to opt in for ENUM (although the Telco is allowed 
to opt-in for the user as well). The NAPTRs are the user's choice, too. 
Validation can take place without an cooperating telco as well (eg. via 
providing paperwork, invoices, directory entries etc.)

However, with regards to the number range +43 780, a user is required to 
have the corresponding ENUM-Domain, because it's a prerequisite to 
number allocation.

> 3) What is the charge module of ENUM application now? Is it based on number of
> services, just ENUM number, or some other things?

If you're talking about the registry costs: it's a "per-delegation" 
based model - the registrar is esentially charged "<fee> x <number of 
domains>" with the fee slightly decreasing as the number of domains 
increases.

cheers

axelm