They left lengthy message about electric rates - surely a scam! FCC complaint has been filed.
Contact your legislators to stop the robocallers – send them a complaint every time you get a call. Tell them to stop the scumbags or you will elect someone who will! And why not sue the phone providers for their inaction to pull the plug on these phone terrorists as well? A fantastic class action suit awaits a great attorney team on this one, because it appears that neither Federal nor State authorities give a damn to protect us and openly permit the phone companies to continually profit from your life being interrupted. I use a Panasonic KX-TG6844 phone that can block 250 numbers. The cost of $111 pays for itself if you use Verizon’s Call Intercept service (a $9.99 per month ransom plus federal and local taxes) in a year and you can drop the Verizon intercept service.
Contact the Consumer Union (Consumer Reports) site www.EndRobocalls.org and sign their petition to pressure the phone companies and lobby the government. It won’t cost you a cent! BTW, recent news articles (early July 2015) indicate Verizon is going to screw us more during their attempt to deregulate communications services and fees which could cost us more by buying into their anonymous call intercept useless service, etc.
The Indian call centers don't care about US law any more than you care about Indian law. Mark the number as spam and block it in your phone. When Americans start electing Asian officals, though, your plan will work too.