Illinois Gov. Pat Quinn has signed a bill into law requiring companies and others who make so-called robo calls to keep a record of the calls made.
The new law signed Monday also will require the callers to keep track of the calls they claim are exempt from do-not-call registries.
Quinn's office said in a news release the new law increases consumer protections already provided in existing laws against such calls.
The legislation was sponsored by state Sen. Pamela Althoff and takes effect immediately.