Ruedii's comments

The "in the wild" hack of the caller ID jammer is probably openly available if you look hard enough.

There are also likely phone system commands to quickly verify the incoming phone number a second time utilizing out of band signals. If how to derive how to do this, one might be able to detect spoofed caller ID and retrieve the actual source line information.

I wonder if either of these technologies could be used to detect robocalls.

Personally if I had the time and ability to write such a system, what I would do to incoming robocalls is go and route them (and pressing one if it is necessary) to an AI voice system just smart enough to pull the person's leg for a few hours making the person run in circles trying to explain the deal to what they think is a person who can't understand it. You know, robo the robo-call.

Under Obama they made steps forward to stop these, penalties were drastically increased, and an actual investigation team was put together, but Trump defunded the efforts and now the complaint form leads to a massive master in pile with no hope of a single message being read.

The phone companies ARE able to stop the caller ID spoofing with a simple notch filter placed at the right point on the line, or packet filter on the right place on the firewall.

They could easily force businesses to give a valid return number on their calls and prevent jamming based caller ID spoofing, but instead they don't want to because these calls mean more money for them.

I had read a while back of the use of nano-texturing on the electrodes in this process to improve the yield of desired compounds.

Have you considered doing this?

I had read something about using a nano-surface on the electrodes on this process to improve the yield of desired products. Have you considered using similar technology?