[VoiceOps] Stale Caller ID

Kidd Filby kiddfilby at gmail.com
Sun Nov 3 17:49:33 EST 2024


I guess that would depend on your definition of “official”. But, yes… the
LIDB is/was supposed to be the gospel. However, there are and have been
satellite databases for decades.  They are all supposed to communicate and
play nice together. But… you know how that goes. Just like, if you had a
CNAM provider, you weren’t allowed, by contract, to cache the dipped data.
That rarely stopped anyone from doing it.



Kidd Filby
661.557.5640 (C)
http://www.linkedin.com/in/kiddfilby




On Sun, Nov 3, 2024 at 15:09 Ross Tajvar <ross at tajvar.io> wrote:

> Are there multiple official CNAM databases? I thought there was just the
> LIDB.
>
> On Sun, Nov 3, 2024 at 9:30 AM Jawaid Bazyar via VoiceOps <
> voiceops at voiceops.org> 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 in then the data is just bad - cached, out of date, etc.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 <
>> voiceops at voiceops.org> 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 <voiceops at voiceops.org>
>>> 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 <
>>>> voiceops at voiceops.org> 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 <
>>>>> voiceops at voiceops.org> 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" <voiceops at voiceops.org>
>>>>>> To: "VoiceOps" <voiceops at voiceops.org>
>>>>>> 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 <
>>>>>> voiceops at voiceops.org> 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
>>>>>> > VoiceOps at voiceops.org
>>>>>> > 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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