[asterisk-users] Re: Open CallerID Database?

[Natambu Obleton]

So how does this start? I mean it wouldn't be hard to modify dns
server to use 3/3/4 format ip address... or it would need to be
3/3/3/4 for international right and someone wrote a module for
asterisk look up that way and then I took my SS7 connection and setup
a GTT gateway to a server so that real telco's could query it over SS7
and use my other CNAM provider as backup so that people could make me
their main connection, but alas...

most cnam providers don't allow you to resale lookups. Time to move
on, but it would be kewl to start a revolution. :)

On 2/20/07, Anselm Martin Hoffmeister <anselm at hoffmeister-online.de> wrote:
> Am Dienstag, den 20.02.2007, 14:54 -0500 schrieb Mike Lynchfield:
> > Well caching is the way to go., bu then again most of the current
> > solutions have this problem.
> >
> > John smit has a DID.. 514 555 1234 and closes account.. did sleeps for
> > 3 months and new client Jane doe takes it..
> >
> > Now how long should caching be ? this is a big problem ATM because
> > some cache for 1 year others 1 day , they don't want to tell how long
> > nor provider an API update method.
>
> Coming back to the DNS example, there are certain timeouts. I have to
> admit I cannot tell how exactly the timeout values work together, but
> you _can_ set an absolute timeout after which any cached data (counted
> from the moment of retrieval) is marked obsolete and a subsequent query
> occurs. If you set something in the 2-week-range (which may or may not
> be what many people use in DNS) you can be pretty sure that freshly
> assigned numbers do not have dangling cache records, assuming the 3
> months "gap" before assigning the same number again.
>
> Assuming one could add an additional TXT record to enum, say
>
> name.0.6.0.7.x.x.x.enum.info. TXT "Hoffmeister, Anselm Martin"
>
> this would pretty much do the trick. I have no idea wether any standard
> describes name resolution via enum.
>
> The other way around would be more tricky btw., with all those "John
> Smith" around ;)
>
> BR
> Anselm
>
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