On 7/9/21 3:44 PM, Keith Medcalf wrote:
On Friday, 9 July, 2021 16:32, K. Scott Helms wrote:
Robocalls really aren't a product of the legacy PSTN. Today almost none
of them originate from anywhere but VOIP. Now, you can certainly say
that if SS7 had robust authentication mechanisms that we could then trust
caller ID (more) but there's no sign of us abandoning the PSTN anytime
soon. Having said that, there's any number of protocols we rely on today
that have the exact same gap. BGP is arguably even worse than SS7.
The root of the problem is that the "Caller ID" is not a "Caller ID". If there were a requirement
for "truth in advertizing" it would properly be called the "Caller Advertizement" because it is
primarily intended as an advertizement by the caller, and not an ID of the caller.
The assumption back around 2004 was that P-Asserted-ID would be an old
boys network to the end and get told to buzz off when I complained that
it wouldn't. This was trivially foreseeable back then and it played it
the most ridiculously foreseeable way.
Mike
