We all get them, unknown calls. I’ve stopped answering them. They leave no voicemail. Probably a robocall.  A computer-generated call when answered goes to a call center. Everything from solar panels to car warranties, these unwanted and unsolicited calls are on the growth.  There is hope, however.

On Thursday, the Federal Communications Commission passed a ruling that allows and encourages phone companies to block robocalls by default.

"We think these actions will help consumers in the near term and the long term to get the peace and the quiet that they deserve," said FCC Chairman Ajit Pai.

Robocalls are a rising nuisance in the U.S., and many of them are illegal scams. The call-blocking company YouMail estimates that there were some 4.7 billion robocalls placed in the U.S. in May alone.

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