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<font size="+1">I think the problem is so large that your case of
being a legitimate business contact and getting an exception is minimal
at best.<br>
<br>
Besides, the days of answering a phone call from someone not in
your contacts is going away quickly. The scam likely tag isn't
even needed any longer. Gee, thanks for calling, just leave a
message. No app required, just check to see if friend or coworker.<br>
<br>
What gets me nowadays are the messages asking you to call them
back at specific numbers. I doubt anyone picks up, they want you
to go to a web site. I've alerted the FCC about scams that give
out phone numbers but never checked the validity and never
received any update.<br>
<br>
~Glen<br>
</font><br>
<div class="moz-cite-prefix">On 8/30/2018 18:10, Jared Geiger wrote:<br>
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cite="mid:CAHuchRB-Pw-7ckHtVe5crB_vpTP3y30ySxmsrzKys9ysmxybiA@mail.gmail.com">
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<div dir="ltr">T-Mobile definitely does it on the network level
and my iPhone shows Scam Likely sometimes.</div>
<br>
<div class="gmail_quote">
<div dir="ltr">On Thu, Aug 30, 2018 at 4:04 PM Alex Balashov
<<a href="mailto:abalashov@evaristesys.com"
moz-do-not-send="true">abalashov@evaristesys.com</a>>
wrote:<br>
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<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">Thanks,
David. <br>
<br>
Setting aside the question of "how" - I agree with your
speculations on<br>
the "sauce", "where" is it done? Do the US mobile majors do
this at the<br>
network level? Do some of them use Google's service for it,
which as I<br>
understand is baked into the Android Phone app but may not be
enabled?<br>
What about on iDevices? <br>
<br>
I'm not really concerned with people who use apps to screen<br>
telemarketers. They're just not a big factor for me; most
people do not<br>
use these apps. I'm interested in what happens by default
without the<br>
user's intervention.<br>
<br>
On Thu, Aug 30, 2018 at 11:00:49PM +0000, Hiers, David wrote:<br>
<br>
> Hi Alex,<br>
> I have no idea how it is actually done, but there are
lots of useful metrics just lying around that one could use.
Things like:<br>
> <br>
> The last time a specific terminating number called a
specific originating number<br>
> Number of calls<br>
> Rate of calls<br>
> Ratio of originated/terminated calls<br>
> Time of day<br>
> ASR<br>
> Call duration<br>
> <br>
> Like any kind of dynamic reputation metric (credit score,
IP Address reputation, credit card fraud detection, etc), I
bet the actual secret-sauce is pretty closely held. Gotta be
some patents in this area, though.<br>
> <br>
> I'll also bet double that you could come up with a wicked
method for weeding out the "probably unwanted" calls!<br>
> <br>
> <br>
> <br>
> David<br>
> <br>
> <br>
> <br>
> -----Original Message-----<br>
> From: VoiceOps [mailto:<a
href="mailto:voiceops-bounces@voiceops.org" target="_blank"
moz-do-not-send="true">voiceops-bounces@voiceops.org</a>] On
Behalf Of Alex Balashov<br>
> Sent: Thursday, August 30, 2018 3:27 PM<br>
> To: <a href="mailto:voiceops@voiceops.org"
target="_blank" moz-do-not-send="true">voiceops@voiceops.org</a><br>
> Subject: [VoiceOps] ANIs flagged as
telemarketer/spammer/scammer<br>
> <br>
> Hi,<br>
> <br>
> So, of course, it is a known problem in the legitimate
side of the lead engagement call centre, survey, etc. business
that ANIs get flagged as "telemarketer" pretty quickly and
start showing up that way on people's phones. <br>
> <br>
> Your normative viewpoint on that may vary depending on
what you think of lead gen calls, but regardless, a reasonable
person would differentiate<br>
> between:<br>
> <br>
> (1) Legitimate outbound dialing operations that are
following up with leads who provided their phone number and
agreed to be called (at least, as a matter of clicking
"accept" on _something_), or for some other legitimate
mass-dialing purpose, and who actually own the DID inventory
from which they present local-market ANIs and can in fact be
reached on those numbers;<br>
> <br>
> (2) Illegal spammers who use fake ANIs and call people
who did not in any way consent to being called by them.<br>
> <br>
> I am trying to learn a bit more about how this is done
and what a legitimate, above-board business can do about it.<br>
> <br>
> Ignoring the factor of third-party call-screening apps
(which most people with a mobile don't use), where is this
generally implemented? As I understand it, T-Mobile do it on
the network level. I have T-Mobile myself, and probably 2/3rds
of unfamiliar numbers, including quite legitimate ones, show
up as "Scam Likely" — I know that's come up on the list
before. AT&T displays "Telemarketer"; do they do it that
way too, or do they use a Google Android feature for that
which they enable as part of their carrier defaults for
carrier-issued phones? What about other carriers and Android?
<br>
> <br>
> As far as I know, Apple don't do anything like this. Do
people with iPhones just not receive this "service"? How does
that work?<br>
> <br>
> Asking where the central, or the most influential
authority lies and who provides it goes to the heart of the
real question, which is: what can a legitimate business do if
their number has been blacklisted this way? As I understand
it, the maintainers of these lists, along with the criteria
for getting on them, are elusive and inscrutable, and there's
really no recourse and no appeals process. I furthermore
understand that this has led to the widespread approach of
rotating ANIs, but that's a losing battle; they get flagged
too. I imagine it won't be long before the criteria for "Scam
Likely" are just "number appears to call lots of numbers in
this rate centre and otherwise hasn't been around very long".<br>
> <br>
> But this is all just conjecture on my part; I really
don't know much about how my carrier, anyone's carrier, or
some BigCo that's behind my mobile OS decides that a call is a
"telemarketer" or "scam" call. If anyone can shed some light
on how this really works and what, if anything can be done
about it, I would be most appreciative.<br>
> <br>
> --<br>
> Alex Balashov | Principal | Evariste Systems LLC<br>
> <br>
> Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)<br>
> Web: <a href="http://www.evaristesys.com/"
rel="noreferrer" target="_blank" moz-do-not-send="true">http://www.evaristesys.com/</a>,
<a href="http://www.csrpswitch.com/" rel="noreferrer"
target="_blank" moz-do-not-send="true">http://www.csrpswitch.com/</a>
_______________________________________________<br>
> VoiceOps mailing list<br>
> <a href="mailto:VoiceOps@voiceops.org" target="_blank"
moz-do-not-send="true">VoiceOps@voiceops.org</a><br>
> <a
href="https://puck.nether.net/mailman/listinfo/voiceops"
rel="noreferrer" target="_blank" moz-do-not-send="true">https://puck.nether.net/mailman/listinfo/voiceops</a><br>
> <br>
>
----------------------------------------------------------------------<br>
> This message and any attachments are intended only for
the use of the addressee and may contain information that is
privileged and confidential. If the reader of the message is
not the intended recipient or an authorized representative of
the intended recipient, you are hereby notified that any
dissemination of this communication is strictly prohibited. If
you have received this communication in error, notify the
sender immediately by return email and delete the message and
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<br>
-- <br>
Alex Balashov | Principal | Evariste Systems LLC<br>
<br>
Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) <br>
Web: <a href="http://www.evaristesys.com/" rel="noreferrer"
target="_blank" moz-do-not-send="true">http://www.evaristesys.com/</a>,
<a href="http://www.csrpswitch.com/" rel="noreferrer"
target="_blank" moz-do-not-send="true">http://www.csrpswitch.com/</a><br>
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<pre wrap="">_______________________________________________
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<pre class="moz-signature" cols="72">--
Glen Gerhard
<a class="moz-txt-link-abbreviated" href="mailto:glen@cognexus.net">glen@cognexus.net</a>
858.324.4536
Cognexus, LLC
7891 Avenida Kirjah
San Diego, CA 92037
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