Ninety percent of these calls will have known caller IDs, but it's not an effective way to identify a call as spam before responding.
"The only definite way to determine if a call is wanted or unwanted is to respond to it, or let it go to voicemail, and hope that the caller sends a message, the report says.
Not all robotic halls are illegal or unwanted, companies such as pharmacies, banks, and utility companies use them to provide information and alerts to their customers.
But despite laws that prohibit certain types of robokals, including those made for individuals on it The national non-cold register, and those intended to deceive, such calls have risen over the years.
The FCC report is the first published by the agency as evaluates the frequency and prevention of illegal robots. It is concluded that while the frequency of calls is increasing, progress is made on prevention and enforcement.
Major tactics that the FCC uses to combat such calls are authorization methods and call tracking. Both require collaboration from telephone suppliers.
Call authentication will determine if a call actually comes from the number presented in a user's caller ID. In November, the FCC asked service providers to adopt a method called SHAKEN / STIR to effectively certify to users whether the numbers presented in the call ID are accurate. Service providers have agreed to implement the service by the end of this year.
The FCC also asked service providers to track robocals back to their original callers by providing records of calls that users have complained about.
The FCC's ability to enforce laws on robocols depends in part on people's complaints about specific conversations. The agency received 232,000 complaints in 2018.
"The number of complaints received does not correspond to the number of illegal robokals placed," the report said. "Many illegal robots will probably be unreported while consumers can report calls and send complaints about legitimate calls but are just unwanted."
Other Challenges The FCC faces to solve the problem, according to the report, needs further cooperation from foreign authorities and service providers, as well as a longer statute for such cases.