https://www.fcc.gov/document/fcc-adopts-new-rules-combat-spoofed-robocalls
The Federal Communications Commission today adopted new rules to further
promote implementation of the STIR/SHAKEN caller ID authentication
framework to protect consumers against malicious caller ID spoofing. The
new rules make clear the obligations and deadlines for voice service
providers regarding caller ID authentication, advance the use of caller ID
authentication across the nation’s phone networks, and prohibit voice
service providers from adding any line item charges to the bills of
consumer or small business customer subscribers for caller ID
authentication technology.
