That's a lot of thinking. 

As you say: "So then it comes down to the technical means to get existing 
switches / PBXs etc to query the data. And to query the legacy databases during 
a transition time."

That's where most things go to die.

-- Alex

> On Nov 3, 2024, at 9:29 am, Jawaid Bazyar via VoiceOps 
> <[email protected]> wrote:
> 
> Hi,
> 
> let's think about this a bit..
> 
> only the carrier that owns the number (according to LNP database etc.) knows 
> what the CNAM data should be
> only that carrier should be able to edit CNAM data
> 
> currently, as Kidd noted, terminating carriers look up the data (from one of 
> numerous incomplete repositories of CNAM data)
> And if the database isn't the same one that the owning carrier publishes in 
> then the data is just bad - cached, out of date, etc.
> 
> How much are you all paying for CNAM data lookup on a monthly basis?
> 
> The thing in the Internet world that this is the closest to, is DNS, and 
> that's free to publish into and free to query. The costs of running the 
> system are distributed.
> 
> The key difference is how the system knows who controls a record and has the 
> right to update it. Which is a more or less solved problem.
> 
> So then it comes down to the technical means to get existing switches / PBXs 
> etc to query the data. And to query the legacy databases during a transition 
> time.
> 
> Jawaid
> 
> 
> 
> On Fri, Nov 1, 2024 at 4:11 PM Kidd Filby via VoiceOps 
> <[email protected]> wrote:
> In US PSTN-speak…. CallerID/name is a terminating feature, unlike Canada 
> which is an Originating feature (data sent from caller). Until that changes, 
> we are at the mercy of cached data by providers who don’t refresh/update 
> their data. Unless Everyone dips the same exact database, which I don’t see 
> happening anytime soon, there will be inconsistencies between 
> carriers/providers. 
> 
> Kidd Filby
> 661.557.5640 (C)
> http://www.linkedin.com/in/kiddfilby  
> 
> 
> 
> 
> On Fri, Nov 1, 2024 at 12:47 chris via VoiceOps <[email protected]> wrote:
> It's too bad ENUM never took off. Would have been great to dip the number get 
> direct sip uri, get a url/pointer to caller id/cnam data etc. Not to mention 
> direct peering without so many hops. 
> 
> - chris
> 
> 
> On Fri, Nov 1, 2024, 2:29 PM Shawn L via VoiceOps <[email protected]> 
> wrote:
> Unfortunately, you're at the mercy of the call-ed party's carrier.  A lot of 
> providers maintain their own database, and only periodically update it. I 
> suspect this is a hold-over from when dips were expensive.  That carrier may, 
> or may not update their databases regularly.  For esample when I call one of 
> our consultants, my caller id comes up on his phone as the person who had my 
> DID 20+ years ago, well before we had a relationship with the consultant.  
> The correct information is being sent from our switch, and Neustar has the 
> correct information, but his provider (I think verizon) is sending something 
> that's completely wrong.
> 
> On Fri, Nov 1, 2024 at 2:21 PM Mike Hammett via VoiceOps 
> <[email protected]> wrote:
> Sorry, you're right.
> 
> 
> CNAM
> 
> 
> 
> 
> -----
> Mike Hammett
> Intelligent Computing Solutions
> http://www.ics-il.com
> 
> 
> 
> Midwest Internet Exchange
> http://www.midwest-ix.com
> 
> ----- Original Message -----
> From: "Alex Balashov via VoiceOps" <[email protected]>
> To: "VoiceOps" <[email protected]>
> Sent: Friday, November 1, 2024 1:06:45 PM
> Subject: Re: [VoiceOps] Stale Caller ID
> 
> Caller ID, or calling name (CNAM)?
> 
> > On Nov 1, 2024, at 1:52 pm, Mike Hammett via VoiceOps 
> > <[email protected]> wrote:
> > 
> > How common is how stale of caller ID data? We have a customer that is 
> > complaining that they're getting the wrong data on their phone. They insist 
> > it's not a local directory. We've verified it works fine on other providers.
> > 
> > 
> > 
> > -----
> > Mike Hammett
> > Intelligent Computing Solutions
> > http://www.ics-il.com
> > 
> > 
> > 
> > Midwest Internet Exchange
> > http://www.midwest-ix.com
> > 
> > _______________________________________________
> > VoiceOps mailing list
> > [email protected]
> > https://puck.nether.net/mailman/listinfo/voiceops
> 
> -- 
> Alex Balashov
> Principal Consultant
> Evariste Systems LLC
> Web: https://evaristesys.com
> Tel: +1-706-510-6800
> 
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-- 
Alex Balashov
Principal Consultant
Evariste Systems LLC
Web: https://evaristesys.com
Tel: +1-706-510-6800

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