https://techcrunch.com/2018/11/06/fcc-tells-carriers-they-must-adopt-a-system-to-detect-scam-robocalls-by-next-year/

The U.S. Federal Communications Commission is calling on the telecom industry to help put an end to scam robocalls. On Monday, FCC chairman Ajit Pai sent letters to the heads of voice providers, including AT&T, Charter, Comcast, Cox, Frontier, Google, Sprint, T-Mobile, Verizon* and others, urging them to adopt a call authentication system that would combat illegal caller ID spoofing and get that system up and running no later than next year.

The FCC stressed the system was critical to protecting Americans from scam robocalls.