From the article:
> The new bill, SB 208, was introduced by Senator Ben Hueso (D.-San Diego) earlier this week. It effectively sets a deadline of July 1, 2020 as the date by which phone companies must "take the steps necessary to stop these illegal scams."
> ...
> The FCC had previously suggested phone companies utilize a system called the Secure Telephony Identity Revisited and Secure Handling of Asserted information using toKENs (STIR/SHAKEN), which helps law enforcement identify numbers attached to robocall efforts. However, no deadline has yet been legally set for these companies to take any official action.
Can a telephony expert comment on whether the California law is technically and/or economically feasible?