Caller ID authentication is a new system aimed at combating illegal caller ID spoofing. Such a system is critical to protecting Americans from scam spoofed robocalls and would erode the ability of callers to illegally spoof a caller ID, which scammers use to trick Americans into answering their phones when they shouldn’t. Additionally, consumers and law enforcement alike could more readily identify the source of illegal robocalls and reduce their frequency and impact. Industry stakeholders are working to implement caller ID authentication, which is sometimes called STIR/SHAKEN. Once implemented, it should greatly help the accuracy of caller ID information and should allow voice service providers to provide helpful information to their consumers about which calls to answer.