nanog mailing list archives

Re: FCC chairwoman: Fines alone aren't enough (Robocalls)


From: bzs () theworld com
Date: Tue, 4 Oct 2022 14:22:48 -0400


On October 3, 2022 at 16:05 mike () mtcc com (Michael Thomas) wrote:
The problem has always been solvable at the ingress provider. The 
problem was that there was zero to negative incentive to do that. You 
don't need an elaborate PKI to tell the ingress provider which prefixes 
customers are allow to assert. It's pretty analogous to when submission 
authentication was pretty nonexistent with email... there was no 
incentive to not be an open relay sewer. Unlike email spam, SIP 
signaling is pretty easy to determine whether it's spam. All it needed 
was somebody to force regulation which unlike email there was always 
jurisdiction with the FCC.

Analogies to email are always fraught.

How often do LEGITIMATE telco customers make hundreds if not thousands
of calls per hour w/o some explicit arrangement with their telco?

As they say, a telephone company is a vast, detailed billing system
with an added voice feature.

Quite unlike email where it's mostly fire and forget plus or minus
hitting a spam filter precisely because there is no billing, no
incentive. And no voice "snowshoeing".

I doubt robocalls are ever made with anything like spam
roboarmies.

With email it's like every single computer on the net with an IP
address has, in effect, a (potentially) fully functional "originating
switch" (again, some exceptions like port 25 blocking.) People have
run spambots from others' printers etc.

-- 
        -Barry Shein

Software Tool & Die    | bzs () TheWorld com             | http://www.TheWorld.com
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