nanog mailing list archives

Re: Are any of you starting to get AI robocalls?


From: Dovid Bender <dovid () telecurve com>
Date: Thu, 5 Apr 2018 13:44:09 -0400

On Thu, Apr 5, 2018 at 11:12 AM, Brian <brian () nc-ct net> wrote:

On Thu, 2018-04-05 at 07:55 -0700, Brian Kantor wrote:

So the logical conclusion is that caller ID is useless as an
anti-vspam measure and the situation is hopeless, so the only
solution is to not personally answer the phone at all -- let voice
mail take a message.

Pretty much. We've received calls here with the CID displaying as our
own info, and others coming up as a neighbor's number. Some even appear
as law enforcement when they're scammers looking for donations to
charities that don't exist. I suppose if you're going to commit one
crime, go for broke.

This is what I have adopted on my personal landline.  With the
ringers disconnected.  Although I get probably a half-dozen incoming
calls a day, perhaps one a week will leave a message.  Most of those
messages are recorded announcements that started playing even before
the voicemail greeting finished.

I've been enjoying quiet on a VoIP line with asterisk. Those who I
know/expect/desire calls from I can route them directly to my extension,
those others get the IVR. It works parallel to IP routing. I can go a
few days without hearing my phone ring yet my logs are filled with
spammers/telemarketing calls. Robo-dialers have no clue which extension
a human may be at, and I've been doing this for over 15 years with great
success. With a digium wildcard, this can work for POTS lines as well.




A simple "Thank you for calling the line of $NAME. To prove you are not a
robot press 1". That seems to weed out most of them.


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