It's a telemarketer. Make sure your number is on the national do not call list then call them back (usually #0 works to get voice mail), cuss them out and threaten them with a complaint to the State's Attorney General, the FTC, the FCC and Homeland Security and any other intimidating agency you can think of.
The Phone number: 4434066165 has been calling at least 2 times a day daily for some time now and they hang up or don't say anything when I've answered the phone,